Attachment 370326 Details for Bug 198066 – [PATCH] For Landing

[patch] [PATCH] For Landing

dup-3.patch (text/plain), 69.29 KB, created by Joseph Pecoraro on 2019-05-21 10:53:39 PDT

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Creator: Joseph Pecoraro

Created: 2019-05-21 10:53:39 PDT

Size: 69.29 KB

patch

obsolete

>diff --git a/Source/WebCore/ChangeLog b/Source/WebCore/ChangeLog
>index 1dc6f1f7d3d..dfff99accbc 100644
>--- a/Source/WebCore/ChangeLog
>+++ b/Source/WebCore/ChangeLog
>@@ -1,3 +1,17 @@
>+2019-05-20  Joseph Pecoraro  <pecoraro@apple.com>
>+
>+        Remove unnecessary duplicate selector invocations
>+        https://bugs.webkit.org/show_bug.cgi?id=198066
>+
>+        Reviewed by Alex Christensen.
>+
>+        * platform/gamepad/cocoa/GameControllerGamepadProvider.mm:
>+        (WebCore::GameControllerGamepadProvider::stopMonitoringGamepads):
>+        * platform/mac/ScrollbarThemeMac.mm:
>+        (+[WebScrollbarPrefsObserver registerAsObserver]):
>+        * platform/mediastream/mac/AVCaptureDeviceManager.mm:
>+        (WebCore::AVCaptureDeviceManager::registerForDeviceNotifications):
>+
> 2019-05-20  Ross Kirsling  <ross.kirsling@sony.com>
> 
>         Make lossy LayoutUnit constructors explicit
>diff --git a/Source/WebCore/platform/gamepad/cocoa/GameControllerGamepadProvider.mm b/Source/WebCore/platform/gamepad/cocoa/GameControllerGamepadProvider.mm
>index f720cfd3343..26857716cf0 100644
>--- a/Source/WebCore/platform/gamepad/cocoa/GameControllerGamepadProvider.mm
>+++ b/Source/WebCore/platform/gamepad/cocoa/GameControllerGamepadProvider.mm
>@@ -130,8 +130,9 @@ void GameControllerGamepadProvider::stopMonitoringGamepads(GamepadProviderClient
>     if (!m_connectObserver || !m_clients.isEmpty())
>         return;
> 
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_connectObserver.get()];
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_disconnectObserver.get()];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center removeObserver:m_connectObserver.get()];
>+    [center removeObserver:m_disconnectObserver.get()];
> }
> 
> unsigned GameControllerGamepadProvider::indexForNewlyConnectedDevice()
>diff --git a/Source/WebCore/platform/mac/ScrollbarThemeMac.mm b/Source/WebCore/platform/mac/ScrollbarThemeMac.mm
>index b5d926a1b57..9a7a3cb75aa 100644
>--- a/Source/WebCore/platform/mac/ScrollbarThemeMac.mm
>+++ b/Source/WebCore/platform/mac/ScrollbarThemeMac.mm
>@@ -112,8 +112,9 @@ + (void)behaviorPrefsChanged:(NSNotification *)unusedNotification
> 
> + (void)registerAsObserver
> {
>-    [[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(appearancePrefsChanged:) name:@"AppleAquaScrollBarVariantChanged" object:nil suspensionBehavior:NSNotificationSuspensionBehaviorDeliverImmediately];
>-    [[NSDistributedNotificationCenter defaultCenter] addObserver:self selector:@selector(behaviorPrefsChanged:) name:@"AppleNoRedisplayAppearancePreferenceChanged" object:nil suspensionBehavior:NSNotificationSuspensionBehaviorCoalesce];
>+    NSDistributedNotificationCenter *distributedCenter = [NSDistributedNotificationCenter defaultCenter];
>+    [distributedCenter addObserver:self selector:@selector(appearancePrefsChanged:) name:@"AppleAquaScrollBarVariantChanged" object:nil suspensionBehavior:NSNotificationSuspensionBehaviorDeliverImmediately];
>+    [distributedCenter addObserver:self selector:@selector(behaviorPrefsChanged:) name:@"AppleNoRedisplayAppearancePreferenceChanged" object:nil suspensionBehavior:NSNotificationSuspensionBehaviorCoalesce];
>     [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(behaviorPrefsChanged:) name:NSPreferredScrollerStyleDidChangeNotification object:nil];
> }
> 
>diff --git a/Source/WebCore/platform/mediastream/mac/AVCaptureDeviceManager.mm b/Source/WebCore/platform/mediastream/mac/AVCaptureDeviceManager.mm
>index 1c42e20d93b..1cde6854b81 100644
>--- a/Source/WebCore/platform/mediastream/mac/AVCaptureDeviceManager.mm
>+++ b/Source/WebCore/platform/mediastream/mac/AVCaptureDeviceManager.mm
>@@ -184,8 +184,9 @@ AVCaptureDeviceManager::~AVCaptureDeviceManager()
> 
> void AVCaptureDeviceManager::registerForDeviceNotifications()
> {
>-    [[NSNotificationCenter defaultCenter] addObserver:m_objcObserver.get() selector:@selector(deviceConnectedDidChange:) name:AVCaptureDeviceWasConnectedNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:m_objcObserver.get() selector:@selector(deviceConnectedDidChange:) name:AVCaptureDeviceWasDisconnectedNotification object:nil];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center addObserver:m_objcObserver.get() selector:@selector(deviceConnectedDidChange:) name:AVCaptureDeviceWasConnectedNotification object:nil];
>+    [center addObserver:m_objcObserver.get() selector:@selector(deviceConnectedDidChange:) name:AVCaptureDeviceWasDisconnectedNotification object:nil];
> }
> 
> } // namespace WebCore
>diff --git a/Source/WebKit/ChangeLog b/Source/WebKit/ChangeLog
>index 6b5da8d6657..916ee4af6d0 100644
>--- a/Source/WebKit/ChangeLog
>+++ b/Source/WebKit/ChangeLog
>@@ -1,3 +1,37 @@
>+2019-05-20  Joseph Pecoraro  <pecoraro@apple.com>
>+
>+        Remove unnecessary duplicate selector invocations
>+        https://bugs.webkit.org/show_bug.cgi?id=198066
>+
>+        Reviewed by Alex Christensen.
>+
>+        * PluginProcess/mac/PluginProcessMac.mm:
>+        (WebKit::initializeCocoaOverrides):
>+        * UIProcess/ApplicationStateTracker.mm:
>+        * UIProcess/Cocoa/DownloadProxyMapCocoa.mm:
>+        (WebKit::DownloadProxyMap::platformCreate):
>+        (WebKit::DownloadProxyMap::platformDestroy):
>+        * UIProcess/Cocoa/WebProcessPoolCocoa.mm:
>+        (WebKit::WebProcessPool::platformInitializeWebProcess):
>+        (WebKit::WebProcessPool::registerNotificationObservers):
>+        (WebKit::WebProcessPool::unregisterNotificationObservers):
>+        * UIProcess/Cocoa/WebViewImpl.mm:
>+        (-[WKWindowVisibilityObserver startObserving:]):
>+        (-[WKWindowVisibilityObserver stopObserving:]):
>+        (WebKit::WebViewImpl::updateTextTouchBar):
>+        * UIProcess/ios/ProcessAssertionIOS.mm:
>+        (-[WKProcessAssertionBackgroundTaskManager init]):
>+        * UIProcess/ios/WKContentView.mm:
>+        (-[WKContentView _commonInitializationWithProcessPool:configuration:]):
>+        * UIProcess/ios/forms/WKDatePickerViewController.mm:
>+        (-[WKDatePickerViewController viewWillAppear:]):
>+        * UIProcess/mac/TextCheckerMac.mm:
>+        (WebKit::mutableState):
>+        (WebKit::TextChecker::setTestingMode):
>+        (WebKit::TextChecker::isContinuousSpellCheckingAllowed):
>+        * UIProcess/mac/WebInspectorProxyMac.mm:
>+        (WebKit::WebInspectorProxy::attachmentViewDidChange):
>+
> 2019-05-20  Ross Kirsling  <ross.kirsling@sony.com>
> 
>         Make lossy LayoutUnit constructors explicit
>diff --git a/Source/WebKit/PluginProcess/mac/PluginProcessMac.mm b/Source/WebKit/PluginProcess/mac/PluginProcessMac.mm
>index bd3ab080bcc..7ca04859c39 100644
>--- a/Source/WebKit/PluginProcess/mac/PluginProcessMac.mm
>+++ b/Source/WebKit/PluginProcess/mac/PluginProcessMac.mm
>@@ -317,15 +317,15 @@ static void initializeCocoaOverrides()
>     Method runModalForWindowMethod = class_getInstanceMethod(objc_getClass("NSApplication"), @selector(runModalForWindow:));
>     NSApplication_RunModalForWindow = method_setImplementation(runModalForWindowMethod, reinterpret_cast<IMP>(replacedRunModalForWindow));
> 
>-    NSNotificationCenter *defaultCenter = [NSNotificationCenter defaultCenter];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
> 
>     // Track when any Cocoa window is about to be be shown.
>-    id orderOnScreenObserver = [defaultCenter addObserverForName:NSWindowWillOrderOnScreenNotification
>+    id orderOnScreenObserver = [center addObserverForName:NSWindowWillOrderOnScreenNotification
>                                                           object:nil
>                                                            queue:nil
>                                                            usingBlock:^(NSNotification *notification) { fullscreenWindowTracker().windowShown([notification object]); }];
>     // Track when any Cocoa window is about to be hidden.
>-    id orderOffScreenObserver = [defaultCenter addObserverForName:NSWindowWillOrderOffScreenNotification
>+    id orderOffScreenObserver = [center addObserverForName:NSWindowWillOrderOffScreenNotification
>                                                            object:nil
>                                                             queue:nil
>                                                        usingBlock:^(NSNotification *notification) { fullscreenWindowTracker().windowHidden([notification object]); }];
>diff --git a/Source/WebKit/UIProcess/ApplicationStateTracker.mm b/Source/WebKit/UIProcess/ApplicationStateTracker.mm
>index a23d4bf8bf1..20a06073b5b 100644
>--- a/Source/WebKit/UIProcess/ApplicationStateTracker.mm
>+++ b/Source/WebKit/UIProcess/ApplicationStateTracker.mm
>@@ -89,12 +89,12 @@ ApplicationStateTracker::ApplicationStateTracker(UIView *view, SEL didEnterBackg
>     UIWindow *window = [m_view.get() window];
>     ASSERT(window);
> 
>-    NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>     UIApplication *application = [UIApplication sharedApplication];
> 
>     auto weakThis = makeWeakPtr(*this);
> 
>-    m_didFinishSnapshottingAfterEnteringBackgroundObserver = [notificationCenter addObserverForName:@"_UIApplicationDidFinishSuspensionSnapshotNotification" object:application queue:nil usingBlock:[weakThis](NSNotification *) {
>+    m_didFinishSnapshottingAfterEnteringBackgroundObserver = [center addObserverForName:@"_UIApplicationDidFinishSuspensionSnapshotNotification" object:application queue:nil usingBlock:[weakThis](NSNotification *) {
>         auto applicationStateTracker = weakThis.get();
>         if (!applicationStateTracker)
>             return;
>@@ -106,17 +106,17 @@ ApplicationStateTracker::ApplicationStateTracker(UIView *view, SEL didEnterBackg
>         m_isInBackground = application.applicationState == UIApplicationStateBackground;
> 
> #if HAVE(UISCENE)
>-        m_didEnterBackgroundObserver = [notificationCenter addObserverForName:UISceneDidEnterBackgroundNotification object:window.windowScene queue:nil usingBlock:[this](NSNotification *) {
>+        m_didEnterBackgroundObserver = [center addObserverForName:UISceneDidEnterBackgroundNotification object:window.windowScene queue:nil usingBlock:[this](NSNotification *) {
> #else
>-        m_didEnterBackgroundObserver = [notificationCenter addObserverForName:UIApplicationDidEnterBackgroundNotification object:application queue:nil usingBlock:[this](NSNotification *) {
>+        m_didEnterBackgroundObserver = [center addObserverForName:UIApplicationDidEnterBackgroundNotification object:application queue:nil usingBlock:[this](NSNotification *) {
> #endif
>             applicationDidEnterBackground();
>         }];
> 
> #if HAVE(UISCENE)
>-        m_willEnterForegroundObserver = [notificationCenter addObserverForName:UISceneWillEnterForegroundNotification object:window.windowScene queue:nil usingBlock:[this](NSNotification *) {
>+        m_willEnterForegroundObserver = [center addObserverForName:UISceneWillEnterForegroundNotification object:window.windowScene queue:nil usingBlock:[this](NSNotification *) {
> #else
>-        m_willEnterForegroundObserver = [notificationCenter addObserverForName:UIApplicationWillEnterForegroundNotification object:application queue:nil usingBlock:[this](NSNotification *) {
>+        m_willEnterForegroundObserver = [center addObserverForName:UIApplicationWillEnterForegroundNotification object:application queue:nil usingBlock:[this](NSNotification *) {
> #endif
>             applicationWillEnterForeground();
>         }];
>@@ -150,10 +150,10 @@ ApplicationStateTracker::ApplicationStateTracker(UIView *view, SEL didEnterBackg
>         if ([serviceViewController._hostApplicationBundleIdentifier isEqualToString:@"com.apple.ios.StoreKitUIService"])
>             m_isInBackground = false;
> 
>-        m_didEnterBackgroundObserver = [notificationCenter addObserverForName:@"_UIViewServiceHostDidEnterBackgroundNotification" object:serviceViewController queue:nil usingBlock:[this](NSNotification *) {
>+        m_didEnterBackgroundObserver = [center addObserverForName:@"_UIViewServiceHostDidEnterBackgroundNotification" object:serviceViewController queue:nil usingBlock:[this](NSNotification *) {
>             applicationDidEnterBackground();
>         }];
>-        m_willEnterForegroundObserver = [notificationCenter addObserverForName:@"_UIViewServiceHostWillEnterForegroundNotification" object:serviceViewController queue:nil usingBlock:[this](NSNotification *) {
>+        m_willEnterForegroundObserver = [center addObserverForName:@"_UIViewServiceHostWillEnterForegroundNotification" object:serviceViewController queue:nil usingBlock:[this](NSNotification *) {
>             applicationWillEnterForeground();
>         }];
> 
>@@ -195,10 +195,10 @@ ApplicationStateTracker::~ApplicationStateTracker()
>         return;
>     }
> 
>-    NSNotificationCenter *notificationCenter = [NSNotificationCenter defaultCenter];
>-    [notificationCenter removeObserver:m_didEnterBackgroundObserver];
>-    [notificationCenter removeObserver:m_didFinishSnapshottingAfterEnteringBackgroundObserver];
>-    [notificationCenter removeObserver:m_willEnterForegroundObserver];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center removeObserver:m_didEnterBackgroundObserver];
>+    [center removeObserver:m_didFinishSnapshottingAfterEnteringBackgroundObserver];
>+    [center removeObserver:m_willEnterForegroundObserver];
> }
> 
> void ApplicationStateTracker::applicationDidEnterBackground()
>diff --git a/Source/WebKit/UIProcess/Cocoa/DownloadProxyMapCocoa.mm b/Source/WebKit/UIProcess/Cocoa/DownloadProxyMapCocoa.mm
>index ac91cd6b217..9059faf53c7 100644
>--- a/Source/WebKit/UIProcess/Cocoa/DownloadProxyMapCocoa.mm
>+++ b/Source/WebKit/UIProcess/Cocoa/DownloadProxyMapCocoa.mm
>@@ -35,12 +35,13 @@ namespace WebKit {
> void DownloadProxyMap::platformCreate()
> {
> #if PLATFORM(IOS_FAMILY)
>-    m_backgroundObserver = [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationDidEnterBackgroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:makeBlockPtr([weakThis = makeWeakPtr(*this)](NSNotification *) {
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    m_backgroundObserver = [center addObserverForName:UIApplicationDidEnterBackgroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:makeBlockPtr([weakThis = makeWeakPtr(*this)](NSNotification *) {
>         if (!weakThis)
>             return;
>         weakThis->applicationDidEnterBackground();
>     }).get()];
>-    m_foregroundObserver = [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationWillEnterForegroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:makeBlockPtr([weakThis = makeWeakPtr(*this)](NSNotification *) {
>+    m_foregroundObserver = [center addObserverForName:UIApplicationWillEnterForegroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:makeBlockPtr([weakThis = makeWeakPtr(*this)](NSNotification *) {
>         if (!weakThis)
>             return;
>         weakThis->applicationWillEnterForeground();
>@@ -51,8 +52,9 @@ void DownloadProxyMap::platformCreate()
> void DownloadProxyMap::platformDestroy()
> {
> #if PLATFORM(IOS_FAMILY)
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_backgroundObserver.get()];
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_foregroundObserver.get()];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center removeObserver:m_backgroundObserver.get()];
>+    [center removeObserver:m_foregroundObserver.get()];
> #endif
> }
> 
>diff --git a/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm b/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm
>index 807632ff57c..21d9b5996bb 100644
>--- a/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm
>+++ b/Source/WebKit/UIProcess/Cocoa/WebProcessPoolCocoa.mm
>@@ -239,8 +239,8 @@ void WebProcessPool::platformInitializeWebProcess(WebProcessCreationParameters&
> #endif
> 
> #if !LOG_DISABLED || !RELEASE_LOG_DISABLED
>-    parameters.webCoreLoggingChannels = [[NSUserDefaults standardUserDefaults] stringForKey:@"WebCoreLogging"];
>-    parameters.webKitLoggingChannels = [[NSUserDefaults standardUserDefaults] stringForKey:@"WebKit2Logging"];
>+    parameters.webCoreLoggingChannels = [defaults stringForKey:@"WebCoreLogging"];
>+    parameters.webKitLoggingChannels = [defaults stringForKey:@"WebKit2Logging"];
> #endif
> 
>     // FIXME: Remove this and related parameter when <rdar://problem/29448368> is fixed.
>@@ -404,28 +404,30 @@ void WebProcessPool::backlightLevelDidChangeCallback(CFNotificationCenterRef cen
> 
> void WebProcessPool::registerNotificationObservers()
> {
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+
> #if !PLATFORM(IOS_FAMILY)
>     // Listen for enhanced accessibility changes and propagate them to the WebProcess.
>-    m_enhancedAccessibilityObserver = [[NSNotificationCenter defaultCenter] addObserverForName:WebKitApplicationDidChangeAccessibilityEnhancedUserInterfaceNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *note) {
>+    m_enhancedAccessibilityObserver = [center addObserverForName:WebKitApplicationDidChangeAccessibilityEnhancedUserInterfaceNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *note) {
>         setEnhancedAccessibility([[[note userInfo] objectForKey:@"AXEnhancedUserInterface"] boolValue]);
>     }];
> 
>-    m_automaticTextReplacementNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:NSSpellCheckerDidChangeAutomaticTextReplacementNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>+    m_automaticTextReplacementNotificationObserver = [center addObserverForName:NSSpellCheckerDidChangeAutomaticTextReplacementNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>         TextChecker::didChangeAutomaticTextReplacementEnabled();
>         textCheckerStateChanged();
>     }];
>     
>-    m_automaticSpellingCorrectionNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:NSSpellCheckerDidChangeAutomaticSpellingCorrectionNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>+    m_automaticSpellingCorrectionNotificationObserver = [center addObserverForName:NSSpellCheckerDidChangeAutomaticSpellingCorrectionNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>         TextChecker::didChangeAutomaticSpellingCorrectionEnabled();
>         textCheckerStateChanged();
>     }];
> 
>-    m_automaticQuoteSubstitutionNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:NSSpellCheckerDidChangeAutomaticQuoteSubstitutionNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>+    m_automaticQuoteSubstitutionNotificationObserver = [center addObserverForName:NSSpellCheckerDidChangeAutomaticQuoteSubstitutionNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>         TextChecker::didChangeAutomaticQuoteSubstitutionEnabled();
>         textCheckerStateChanged();
>     }];
> 
>-    m_automaticDashSubstitutionNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:NSSpellCheckerDidChangeAutomaticDashSubstitutionNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>+    m_automaticDashSubstitutionNotificationObserver = [center addObserverForName:NSSpellCheckerDidChangeAutomaticDashSubstitutionNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>         TextChecker::didChangeAutomaticDashSubstitutionEnabled();
>         textCheckerStateChanged();
>     }];
>@@ -435,22 +437,22 @@ void WebProcessPool::registerNotificationObservers()
>     }];
> 
> #if ENABLE(WEBPROCESS_WINDOWSERVER_BLOCKING)
>-    m_scrollerStyleNotificationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:NSPreferredScrollerStyleDidChangeNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>+    m_scrollerStyleNotificationObserver = [center addObserverForName:NSPreferredScrollerStyleDidChangeNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>         auto scrollbarStyle = [NSScroller preferredScrollerStyle];
>         sendToAllProcesses(Messages::WebProcess::ScrollerStylePreferenceChanged(scrollbarStyle));
>     }];
> #endif
> 
>-    m_activationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:NSApplicationDidBecomeActiveNotification object:NSApp queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>+    m_activationObserver = [center addObserverForName:NSApplicationDidBecomeActiveNotification object:NSApp queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>         setApplicationIsActive(true);
>     }];
> 
>-    m_deactivationObserver = [[NSNotificationCenter defaultCenter] addObserverForName:NSApplicationDidResignActiveNotification object:NSApp queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>+    m_deactivationObserver = [center addObserverForName:NSApplicationDidResignActiveNotification object:NSApp queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *notification) {
>         setApplicationIsActive(false);
>     }];
> #elif PLATFORM(IOS)
>     CFNotificationCenterAddObserver(CFNotificationCenterGetDarwinNotifyCenter(), this, backlightLevelDidChangeCallback, static_cast<CFStringRef>(UIBacklightLevelChangedNotification), nullptr, CFNotificationSuspensionBehaviorCoalesce);
>-    m_accessibilityEnabledObserver = [[NSNotificationCenter defaultCenter] addObserverForName:(__bridge id)kAXSApplicationAccessibilityEnabledNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *) {
>+    m_accessibilityEnabledObserver = [center addObserverForName:(__bridge id)kAXSApplicationAccessibilityEnabledNotification object:nil queue:[NSOperationQueue currentQueue] usingBlock:^(NSNotification *) {
>         for (size_t i = 0; i < m_processes.size(); ++i)
>             m_processes[i]->unblockAccessibilityServerIfNeeded();
>     }];
>@@ -460,20 +462,21 @@ void WebProcessPool::registerNotificationObservers()
> void WebProcessPool::unregisterNotificationObservers()
> {
> #if !PLATFORM(IOS_FAMILY)
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_enhancedAccessibilityObserver.get()];
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_automaticTextReplacementNotificationObserver.get()];
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_automaticSpellingCorrectionNotificationObserver.get()];
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_automaticQuoteSubstitutionNotificationObserver.get()];
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_automaticDashSubstitutionNotificationObserver.get()];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center removeObserver:m_enhancedAccessibilityObserver.get()];
>+    [center removeObserver:m_automaticTextReplacementNotificationObserver.get()];
>+    [center removeObserver:m_automaticSpellingCorrectionNotificationObserver.get()];
>+    [center removeObserver:m_automaticQuoteSubstitutionNotificationObserver.get()];
>+    [center removeObserver:m_automaticDashSubstitutionNotificationObserver.get()];
>     [[NSWorkspace.sharedWorkspace notificationCenter] removeObserver:m_accessibilityDisplayOptionsNotificationObserver.get()];
> #if ENABLE(WEBPROCESS_WINDOWSERVER_BLOCKING)
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_scrollerStyleNotificationObserver.get()];
>+    [center removeObserver:m_scrollerStyleNotificationObserver.get()];
> #endif
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_activationObserver.get()];
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_deactivationObserver.get()];
>+    [center removeObserver:m_activationObserver.get()];
>+    [center removeObserver:m_deactivationObserver.get()];
> #elif PLATFORM(IOS)
>     CFNotificationCenterRemoveObserver(CFNotificationCenterGetDarwinNotifyCenter(), this, static_cast<CFStringRef>(UIBacklightLevelChangedNotification) , nullptr);
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_accessibilityEnabledObserver.get()];
>+    [center removeObserver:m_accessibilityEnabledObserver.get()];
> #endif // !PLATFORM(IOS_FAMILY)
> }
> 
>diff --git a/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm b/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm
>index da3b183b52a..f9a2f80dd20 100644
>--- a/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm
>+++ b/Source/WebKit/UIProcess/Cocoa/WebViewImpl.mm
>@@ -247,22 +247,22 @@ - (void)startObserving:(NSWindow *)window
>     if (!window)
>         return;
> 
>-    NSNotificationCenter *defaultNotificationCenter = [NSNotificationCenter defaultCenter];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
> 
>     // An NSView derived object such as WKView cannot observe these notifications, because NSView itself observes them.
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidOrderOffScreen:) name:@"NSWindowDidOrderOffScreenNotification" object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidOrderOnScreen:) name:@"_NSWindowDidBecomeVisible" object:window];
>+    [center addObserver:self selector:@selector(_windowDidOrderOffScreen:) name:@"NSWindowDidOrderOffScreenNotification" object:window];
>+    [center addObserver:self selector:@selector(_windowDidOrderOnScreen:) name:@"_NSWindowDidBecomeVisible" object:window];
> 
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidBecomeKey:) name:NSWindowDidBecomeKeyNotification object:nil];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidResignKey:) name:NSWindowDidResignKeyNotification object:nil];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidMiniaturize:) name:NSWindowDidMiniaturizeNotification object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidDeminiaturize:) name:NSWindowDidDeminiaturizeNotification object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidMove:) name:NSWindowDidMoveNotification object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidResize:) name:NSWindowDidResizeNotification object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidChangeBackingProperties:) name:NSWindowDidChangeBackingPropertiesNotification object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidChangeScreen:) name:NSWindowDidChangeScreenNotification object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidChangeLayerHosting:) name:@"_NSWindowDidChangeContentsHostedInLayerSurfaceNotification" object:window];
>-    [defaultNotificationCenter addObserver:self selector:@selector(_windowDidChangeOcclusionState:) name:NSWindowDidChangeOcclusionStateNotification object:window];
>+    [center addObserver:self selector:@selector(_windowDidBecomeKey:) name:NSWindowDidBecomeKeyNotification object:nil];
>+    [center addObserver:self selector:@selector(_windowDidResignKey:) name:NSWindowDidResignKeyNotification object:nil];
>+    [center addObserver:self selector:@selector(_windowDidMiniaturize:) name:NSWindowDidMiniaturizeNotification object:window];
>+    [center addObserver:self selector:@selector(_windowDidDeminiaturize:) name:NSWindowDidDeminiaturizeNotification object:window];
>+    [center addObserver:self selector:@selector(_windowDidMove:) name:NSWindowDidMoveNotification object:window];
>+    [center addObserver:self selector:@selector(_windowDidResize:) name:NSWindowDidResizeNotification object:window];
>+    [center addObserver:self selector:@selector(_windowDidChangeBackingProperties:) name:NSWindowDidChangeBackingPropertiesNotification object:window];
>+    [center addObserver:self selector:@selector(_windowDidChangeScreen:) name:NSWindowDidChangeScreenNotification object:window];
>+    [center addObserver:self selector:@selector(_windowDidChangeLayerHosting:) name:@"_NSWindowDidChangeContentsHostedInLayerSurfaceNotification" object:window];
>+    [center addObserver:self selector:@selector(_windowDidChangeOcclusionState:) name:NSWindowDidChangeOcclusionStateNotification object:window];
> 
>     [window addObserver:self forKeyPath:@"contentLayoutRect" options:NSKeyValueObservingOptionInitial context:keyValueObservingContext];
>     [window addObserver:self forKeyPath:@"titlebarAppearsTransparent" options:NSKeyValueObservingOptionInitial context:keyValueObservingContext];
>@@ -273,21 +273,21 @@ - (void)stopObserving:(NSWindow *)window
>     if (!window)
>         return;
> 
>-    NSNotificationCenter *defaultNotificationCenter = [NSNotificationCenter defaultCenter];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
> 
>-    [defaultNotificationCenter removeObserver:self name:@"NSWindowDidOrderOffScreenNotification" object:window];
>-    [defaultNotificationCenter removeObserver:self name:@"_NSWindowDidBecomeVisible" object:window];
>+    [center removeObserver:self name:@"NSWindowDidOrderOffScreenNotification" object:window];
>+    [center removeObserver:self name:@"_NSWindowDidBecomeVisible" object:window];
> 
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidBecomeKeyNotification object:nil];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidResignKeyNotification object:nil];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidMiniaturizeNotification object:window];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidDeminiaturizeNotification object:window];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidMoveNotification object:window];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidResizeNotification object:window];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidChangeBackingPropertiesNotification object:window];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidChangeScreenNotification object:window];
>-    [defaultNotificationCenter removeObserver:self name:@"_NSWindowDidChangeContentsHostedInLayerSurfaceNotification" object:window];
>-    [defaultNotificationCenter removeObserver:self name:NSWindowDidChangeOcclusionStateNotification object:window];
>+    [center removeObserver:self name:NSWindowDidBecomeKeyNotification object:nil];
>+    [center removeObserver:self name:NSWindowDidResignKeyNotification object:nil];
>+    [center removeObserver:self name:NSWindowDidMiniaturizeNotification object:window];
>+    [center removeObserver:self name:NSWindowDidDeminiaturizeNotification object:window];
>+    [center removeObserver:self name:NSWindowDidMoveNotification object:window];
>+    [center removeObserver:self name:NSWindowDidResizeNotification object:window];
>+    [center removeObserver:self name:NSWindowDidChangeBackingPropertiesNotification object:window];
>+    [center removeObserver:self name:NSWindowDidChangeScreenNotification object:window];
>+    [center removeObserver:self name:@"_NSWindowDidChangeContentsHostedInLayerSurfaceNotification" object:window];
>+    [center removeObserver:self name:NSWindowDidChangeOcclusionStateNotification object:window];
> 
>     if (_impl->isEditable())
>         [[NSFontPanel sharedFontPanel] removeObserver:self forKeyPath:@"visible" context:keyValueObservingContext];
>@@ -1107,9 +1107,10 @@ void WebViewImpl::updateTextTouchBar()
>         m_textTouchBarItemController = adoptNS([[WKTextTouchBarItemController alloc] initWithWebViewImpl:this]);
> 
>     if (!m_startedListeningToCustomizationEvents) {
>-        [[NSNotificationCenter defaultCenter] addObserver:m_textTouchBarItemController.get() selector:@selector(touchBarDidExitCustomization:) name:NSTouchBarDidExitCustomization object:nil];
>-        [[NSNotificationCenter defaultCenter] addObserver:m_textTouchBarItemController.get() selector:@selector(touchBarWillEnterCustomization:) name:NSTouchBarWillEnterCustomization object:nil];
>-        [[NSNotificationCenter defaultCenter] addObserver:m_textTouchBarItemController.get() selector:@selector(didChangeAutomaticTextCompletion:) name:NSSpellCheckerDidChangeAutomaticTextCompletionNotification object:nil];
>+        NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+        [center addObserver:m_textTouchBarItemController.get() selector:@selector(touchBarDidExitCustomization:) name:NSTouchBarDidExitCustomization object:nil];
>+        [center addObserver:m_textTouchBarItemController.get() selector:@selector(touchBarWillEnterCustomization:) name:NSTouchBarWillEnterCustomization object:nil];
>+        [center addObserver:m_textTouchBarItemController.get() selector:@selector(didChangeAutomaticTextCompletion:) name:NSSpellCheckerDidChangeAutomaticTextCompletionNotification object:nil];
> 
>         m_startedListeningToCustomizationEvents = true;
>     }
>diff --git a/Source/WebKit/UIProcess/ios/ProcessAssertionIOS.mm b/Source/WebKit/UIProcess/ios/ProcessAssertionIOS.mm
>index 2aca868bb8b..148d43d7549 100644
>--- a/Source/WebKit/UIProcess/ios/ProcessAssertionIOS.mm
>+++ b/Source/WebKit/UIProcess/ios/ProcessAssertionIOS.mm
>@@ -73,13 +73,14 @@ - (instancetype)init
> 
>     _backgroundTask = UIBackgroundTaskInvalid;
> 
>-    [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationWillEnterForegroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:^(NSNotification *) {
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center addObserverForName:UIApplicationWillEnterForegroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:^(NSNotification *) {
>         _applicationIsBackgrounded = NO;
>         [self _cancelPendingReleaseTask];
>         [self _updateBackgroundTask];
>     }];
> 
>-    [[NSNotificationCenter defaultCenter] addObserverForName:UIApplicationDidEnterBackgroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:^(NSNotification *) {
>+    [center addObserverForName:UIApplicationDidEnterBackgroundNotification object:[UIApplication sharedApplication] queue:nil usingBlock:^(NSNotification *) {
>         _applicationIsBackgrounded = YES;
>     }];
> 
>diff --git a/Source/WebKit/UIProcess/ios/WKContentView.mm b/Source/WebKit/UIProcess/ios/WKContentView.mm
>index 55d80ca55df..4ba11494ee4 100644
>--- a/Source/WebKit/UIProcess/ios/WKContentView.mm
>+++ b/Source/WebKit/UIProcess/ios/WKContentView.mm
>@@ -271,8 +271,9 @@ - (instancetype)_commonInitializationWithProcessPool:(WebKit::WebProcessPool&)pr
>     [self _setupVisibilityPropagationView];
> #endif
> 
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_applicationWillResignActive:) name:UIApplicationWillResignActiveNotification object:[UIApplication sharedApplication]];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_applicationDidBecomeActive:) name:UIApplicationDidBecomeActiveNotification object:[UIApplication sharedApplication]];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center addObserver:self selector:@selector(_applicationWillResignActive:) name:UIApplicationWillResignActiveNotification object:[UIApplication sharedApplication]];
>+    [center addObserver:self selector:@selector(_applicationDidBecomeActive:) name:UIApplicationDidBecomeActiveNotification object:[UIApplication sharedApplication]];
> 
>     return self;
> }
>diff --git a/Source/WebKit/UIProcess/ios/forms/WKDatePickerViewController.mm b/Source/WebKit/UIProcess/ios/forms/WKDatePickerViewController.mm
>index b87cbf50f65..f2eb3063d02 100644
>--- a/Source/WebKit/UIProcess/ios/forms/WKDatePickerViewController.mm
>+++ b/Source/WebKit/UIProcess/ios/forms/WKDatePickerViewController.mm
>@@ -314,8 +314,10 @@ - (void)viewWillAppear:(BOOL)animated
>     [super viewWillAppear:animated];
> 
>     _statusBarAssertion = [[PUICApplication sharedPUICApplication] _takeStatusBarGlobalContextAssertionAnimated:NO];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_handleStatusBarNavigation) name:PUICStatusBarNavigationBackButtonPressedNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_handleStatusBarNavigation) name:PUICStatusBarTitleTappedNotification object:nil];
>+
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center addObserver:self selector:@selector(_handleStatusBarNavigation) name:PUICStatusBarNavigationBackButtonPressedNotification object:nil];
>+    [center addObserver:self selector:@selector(_handleStatusBarNavigation) name:PUICStatusBarTitleTappedNotification object:nil];
> 
>     configureStatusBarForController(self, self.delegate);
> }
>diff --git a/Source/WebKit/UIProcess/mac/TextCheckerMac.mm b/Source/WebKit/UIProcess/mac/TextCheckerMac.mm
>index d003ea9e577..850915c289f 100644
>--- a/Source/WebKit/UIProcess/mac/TextCheckerMac.mm
>+++ b/Source/WebKit/UIProcess/mac/TextCheckerMac.mm
>@@ -88,14 +88,15 @@ static bool shouldAutomaticDashSubstitutionBeEnabled()
> static TextCheckerState& mutableState()
> {
>     static NeverDestroyed<TextCheckerState> state = makeNeverDestroyed([] {
>+        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>         TextCheckerState initialState;
>-        initialState.isContinuousSpellCheckingEnabled = [[NSUserDefaults standardUserDefaults] boolForKey:WebContinuousSpellCheckingEnabled] && TextChecker::isContinuousSpellCheckingAllowed();
>-        initialState.isGrammarCheckingEnabled = [[NSUserDefaults standardUserDefaults] boolForKey:WebGrammarCheckingEnabled];
>+        initialState.isContinuousSpellCheckingEnabled = [defaults boolForKey:WebContinuousSpellCheckingEnabled] && TextChecker::isContinuousSpellCheckingAllowed();
>+        initialState.isGrammarCheckingEnabled = [defaults boolForKey:WebGrammarCheckingEnabled];
>         initialState.isAutomaticTextReplacementEnabled = shouldAutomaticTextReplacementBeEnabled();
>         initialState.isAutomaticSpellingCorrectionEnabled = shouldAutomaticSpellingCorrectionBeEnabled();
>         initialState.isAutomaticQuoteSubstitutionEnabled = shouldAutomaticQuoteSubstitutionBeEnabled();
>         initialState.isAutomaticDashSubstitutionEnabled = shouldAutomaticDashSubstitutionBeEnabled();
>-        initialState.isAutomaticLinkDetectionEnabled = [[NSUserDefaults standardUserDefaults] boolForKey:WebAutomaticLinkDetectionEnabled];
>+        initialState.isAutomaticLinkDetectionEnabled = [defaults boolForKey:WebAutomaticLinkDetectionEnabled];
>         return initialState;
>     }());
>     return state;
>@@ -111,14 +112,15 @@ static bool testingModeEnabled = false;
> void TextChecker::setTestingMode(bool enabled)
> {
>     if (enabled && !testingModeEnabled) {
>-        [[NSUserDefaults standardUserDefaults] setBool:mutableState().isContinuousSpellCheckingEnabled forKey:WebContinuousSpellCheckingEnabled];
>-        [[NSUserDefaults standardUserDefaults] setBool:mutableState().isGrammarCheckingEnabled forKey:WebGrammarCheckingEnabled];
>-        [[NSUserDefaults standardUserDefaults] setBool:mutableState().isAutomaticSpellingCorrectionEnabled forKey:WebAutomaticSpellingCorrectionEnabled];
>-        [[NSUserDefaults standardUserDefaults] setBool:mutableState().isAutomaticQuoteSubstitutionEnabled forKey:WebAutomaticQuoteSubstitutionEnabled];
>-        [[NSUserDefaults standardUserDefaults] setBool:mutableState().isAutomaticDashSubstitutionEnabled forKey:WebAutomaticDashSubstitutionEnabled];
>-        [[NSUserDefaults standardUserDefaults] setBool:mutableState().isAutomaticLinkDetectionEnabled forKey:WebAutomaticLinkDetectionEnabled];
>-        [[NSUserDefaults standardUserDefaults] setBool:mutableState().isAutomaticTextReplacementEnabled forKey:WebAutomaticTextReplacementEnabled];
>-        [[NSUserDefaults standardUserDefaults] setBool:isSmartInsertDeleteEnabled() forKey:WebSmartInsertDeleteEnabled];
>+        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+        [defaults setBool:mutableState().isContinuousSpellCheckingEnabled forKey:WebContinuousSpellCheckingEnabled];
>+        [defaults setBool:mutableState().isGrammarCheckingEnabled forKey:WebGrammarCheckingEnabled];
>+        [defaults setBool:mutableState().isAutomaticSpellingCorrectionEnabled forKey:WebAutomaticSpellingCorrectionEnabled];
>+        [defaults setBool:mutableState().isAutomaticQuoteSubstitutionEnabled forKey:WebAutomaticQuoteSubstitutionEnabled];
>+        [defaults setBool:mutableState().isAutomaticDashSubstitutionEnabled forKey:WebAutomaticDashSubstitutionEnabled];
>+        [defaults setBool:mutableState().isAutomaticLinkDetectionEnabled forKey:WebAutomaticLinkDetectionEnabled];
>+        [defaults setBool:mutableState().isAutomaticTextReplacementEnabled forKey:WebAutomaticTextReplacementEnabled];
>+        [defaults setBool:isSmartInsertDeleteEnabled() forKey:WebSmartInsertDeleteEnabled];
>     }
>     testingModeEnabled = enabled;
> }
>@@ -134,8 +136,9 @@ bool TextChecker::isContinuousSpellCheckingAllowed()
>     static bool readAllowContinuousSpellCheckingDefault = false;
> 
>     if (!readAllowContinuousSpellCheckingDefault) {
>-        if ([[NSUserDefaults standardUserDefaults] objectForKey:@"NSAllowContinuousSpellChecking"])
>-            allowContinuousSpellChecking = [[NSUserDefaults standardUserDefaults] boolForKey:@"NSAllowContinuousSpellChecking"];
>+        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+        if ([defaults objectForKey:@"NSAllowContinuousSpellChecking"])
>+            allowContinuousSpellChecking = [defaults boolForKey:@"NSAllowContinuousSpellChecking"];
> 
>         readAllowContinuousSpellCheckingDefault = true;
>     }
>diff --git a/Source/WebKit/UIProcess/mac/WebInspectorProxyMac.mm b/Source/WebKit/UIProcess/mac/WebInspectorProxyMac.mm
>index 007d87dfcd8..9bae7cabbba 100644
>--- a/Source/WebKit/UIProcess/mac/WebInspectorProxyMac.mm
>+++ b/Source/WebKit/UIProcess/mac/WebInspectorProxyMac.mm
>@@ -193,8 +193,9 @@ using namespace WebCore;
> 
> void WebInspectorProxy::attachmentViewDidChange(NSView *oldView, NSView *newView)
> {
>-    [[NSNotificationCenter defaultCenter] removeObserver:m_objCAdapter.get() name:NSViewFrameDidChangeNotification object:oldView];
>-    [[NSNotificationCenter defaultCenter] addObserver:m_objCAdapter.get() selector:@selector(inspectedViewFrameDidChange:) name:NSViewFrameDidChangeNotification object:newView];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center removeObserver:m_objCAdapter.get() name:NSViewFrameDidChangeNotification object:oldView];
>+    [center addObserver:m_objCAdapter.get() selector:@selector(inspectedViewFrameDidChange:) name:NSViewFrameDidChangeNotification object:newView];
> 
>     if (m_isAttached)
>         attach(m_attachmentSide);
>diff --git a/Source/WebKitLegacy/mac/ChangeLog b/Source/WebKitLegacy/mac/ChangeLog
>index d5b68e75653..1f8724994d4 100644
>--- a/Source/WebKitLegacy/mac/ChangeLog
>+++ b/Source/WebKitLegacy/mac/ChangeLog
>@@ -1,3 +1,24 @@
>+2019-05-20  Joseph Pecoraro  <pecoraro@apple.com>
>+
>+        Remove unnecessary duplicate selector invocations
>+        https://bugs.webkit.org/show_bug.cgi?id=198066
>+
>+        Reviewed by Alex Christensen.
>+
>+        * WebView/WebPreferences.mm:
>+        (-[WebPreferences _postPreferencesChangedNotification]):
>+        * WebView/WebVideoFullscreenController.mm:
>+        (-[WebVideoFullscreenController windowDidLoad]):
>+        * WebView/WebView.mm:
>+        (-[WebView _commonInitializationWithFrameName:groupName:]):
>+        (-[WebView initSimpleHTMLDocumentWithStyle:frame:preferences:groupName:]):
>+        (+[WebView initialize]):
>+        (-[WebView setPreferences:]):
>+        (-[WebView updateTextTouchBar]):
>+        * WebView/WebViewData.mm:
>+        (-[WebWindowVisibilityObserver startObserving:]):
>+        (-[WebWindowVisibilityObserver stopObserving:]):
>+
> 2019-05-13  Jer Noble  <jer.noble@apple.com>
> 
>         Make QTKit an optional framework
>diff --git a/Source/WebKitLegacy/mac/WebView/WebPreferences.mm b/Source/WebKitLegacy/mac/WebView/WebPreferences.mm
>index 9f1c226fb98..46e415962f8 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebPreferences.mm
>+++ b/Source/WebKitLegacy/mac/WebView/WebPreferences.mm
>@@ -1889,8 +1889,9 @@ - (void)_postPreferencesChangedNotification
>     }
> #endif
> 
>-    [[NSNotificationCenter defaultCenter] postNotificationName:WebPreferencesChangedInternalNotification object:self userInfo:nil];
>-    [[NSNotificationCenter defaultCenter] postNotificationName:WebPreferencesChangedNotification object:self userInfo:nil];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center postNotificationName:WebPreferencesChangedInternalNotification object:self userInfo:nil];
>+    [center postNotificationName:WebPreferencesChangedNotification object:self userInfo:nil];
> }
> 
> - (void)_postPreferencesChangedAPINotification
>diff --git a/Source/WebKitLegacy/mac/WebView/WebVideoFullscreenController.mm b/Source/WebKitLegacy/mac/WebView/WebVideoFullscreenController.mm
>index 23aac34426b..98898ae5ca8 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebVideoFullscreenController.mm
>+++ b/Source/WebKitLegacy/mac/WebView/WebVideoFullscreenController.mm
>@@ -89,8 +89,9 @@ - (void)windowDidLoad
>     [contentView setLayer:[CALayer layer]];
>     [contentView setWantsLayer:YES];
> 
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidResignActive:) name:NSApplicationDidResignActiveNotification object:NSApp];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(applicationDidChangeScreenParameters:) name:NSApplicationDidChangeScreenParametersNotification object:NSApp];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center addObserver:self selector:@selector(applicationDidResignActive:) name:NSApplicationDidResignActiveNotification object:NSApp];
>+    [center addObserver:self selector:@selector(applicationDidChangeScreenParameters:) name:NSApplicationDidChangeScreenParametersNotification object:NSApp];
> }
> 
> - (WebCore::HTMLVideoElement *)videoElement
>diff --git a/Source/WebKitLegacy/mac/WebView/WebView.mm b/Source/WebKitLegacy/mac/WebView/WebView.mm
>index 9d6eea41c5a..da3a4eb08a9 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebView.mm
>+++ b/Source/WebKitLegacy/mac/WebView/WebView.mm
>@@ -1485,6 +1485,8 @@ - (void)_commonInitializationWithFrameName:(NSString *)frameName groupName:(NSSt
>     WebCore::provideDeviceOrientationTo(*_private->page, *new WebDeviceOrientationClient(self));
> #endif
> 
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+
> #if ENABLE(REMOTE_INSPECTOR)
>     _private->page->setRemoteInspectionAllowed(true);
> #endif
>@@ -1502,16 +1504,15 @@ - (void)_commonInitializationWithFrameName:(NSString *)frameName groupName:(NSSt
> 
> #if PLATFORM(IOS_FAMILY)
>     _private->page->settings().setPassiveTouchListenersAsDefaultOnDocument(linkedOnOrAfter(SDKVersion::FirstThatDefaultsToPassiveTouchListenersOnDocument));
>-#endif
> 
>-#if PLATFORM(IOS_FAMILY)
>     // Preserve the behavior we had before <rdar://problem/7580867>
>     // by enforcing a 5MB limit for session storage.
>     _private->page->settings().setSessionStorageQuota(5 * 1024 * 1024);
> 
>     [self _updateScreenScaleFromWindow];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_wakWindowScreenScaleChanged:) name:WAKWindowScreenScaleDidChangeNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_wakWindowVisibilityChanged:) name:WAKWindowVisibilityDidChangeNotification object:nil];
>+
>+    [center addObserver:self selector:@selector(_wakWindowScreenScaleChanged:) name:WAKWindowScreenScaleDidChangeNotification object:nil];
>+    [center addObserver:self selector:@selector(_wakWindowVisibilityChanged:) name:WAKWindowVisibilityDidChangeNotification object:nil];
>     _private->_fixedPositionContent = [[WebFixedPositionContent alloc] initWithWebView:self];
> #if ENABLE(ORIENTATION_EVENTS)
>     _private->deviceOrientation = [[self _UIKitDelegateForwarder] deviceOrientation];
>@@ -1555,7 +1556,7 @@ - (void)_commonInitializationWithFrameName:(NSString *)frameName groupName:(NSSt
>     [self _setIsVisible:[self _isViewVisible]];
> 
>     WebPreferences *prefs = [self preferences];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_preferencesChangedNotification:)
>+    [center addObserver:self selector:@selector(_preferencesChangedNotification:)
>                                                  name:WebPreferencesChangedInternalNotification object:prefs];
> 
> #if !PLATFORM(IOS_FAMILY)
>@@ -1766,8 +1767,9 @@ - (id)initSimpleHTMLDocumentWithStyle:(NSString *)style frame:(CGRect)frame pref
> #endif
>     
>     [self _updateScreenScaleFromWindow];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_wakWindowScreenScaleChanged:) name:WAKWindowScreenScaleDidChangeNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_wakWindowVisibilityChanged:) name:WAKWindowVisibilityDidChangeNotification object:nil];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center addObserver:self selector:@selector(_wakWindowScreenScaleChanged:) name:WAKWindowScreenScaleDidChangeNotification object:nil];
>+    [center addObserver:self selector:@selector(_wakWindowVisibilityChanged:) name:WAKWindowVisibilityDidChangeNotification object:nil];
> 
>     [WebFrame _createMainFrameWithSimpleHTMLDocumentWithPage:_private->page frameView:frameView style:style];
>     
>@@ -5578,17 +5580,17 @@ + (void)initialize
>     WTF::setProcessPrivileges(allPrivileges());
>     WebCore::NetworkStorageSession::permitProcessToUseCookieAPI(true);
> 
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+
> #if !PLATFORM(IOS_FAMILY)
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_applicationWillTerminate) name:NSApplicationWillTerminateNotification object:NSApp];
>+    [center addObserver:self selector:@selector(_applicationWillTerminate) name:NSApplicationWillTerminateNotification object:NSApp];
> #endif
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_cacheModelChangedNotification:) name:WebPreferencesCacheModelChangedInternalNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_preferencesRemovedNotification:) name:WebPreferencesRemovedNotification object:nil];
>+    [center addObserver:self selector:@selector(_cacheModelChangedNotification:) name:WebPreferencesCacheModelChangedInternalNotification object:nil];
>+    [center addObserver:self selector:@selector(_preferencesRemovedNotification:) name:WebPreferencesRemovedNotification object:nil];
> 
> #if PLATFORM(IOS_FAMILY)
>     continuousSpellCheckingEnabled = NO;
>-
> #else
>-
>     NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>     continuousSpellCheckingEnabled = [defaults boolForKey:WebContinuousSpellCheckingEnabled];
>     grammarCheckingEnabled = [defaults boolForKey:WebGrammarCheckingEnabled];
>@@ -5599,13 +5601,13 @@ + (void)initialize
>     automaticTextReplacementEnabled = [self _shouldAutomaticTextReplacementBeEnabled];
>     automaticSpellingCorrectionEnabled = [self _shouldAutomaticSpellingCorrectionBeEnabled];
> 
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_didChangeAutomaticTextReplacementEnabled:)
>+    [center addObserver:self selector:@selector(_didChangeAutomaticTextReplacementEnabled:)
>         name:NSSpellCheckerDidChangeAutomaticTextReplacementNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_didChangeAutomaticSpellingCorrectionEnabled:)
>+    [center addObserver:self selector:@selector(_didChangeAutomaticSpellingCorrectionEnabled:)
>         name:NSSpellCheckerDidChangeAutomaticSpellingCorrectionNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_didChangeAutomaticQuoteSubstitutionEnabled:)
>+    [center addObserver:self selector:@selector(_didChangeAutomaticQuoteSubstitutionEnabled:)
>         name:NSSpellCheckerDidChangeAutomaticQuoteSubstitutionNotification object:nil];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_didChangeAutomaticDashSubstitutionEnabled:)
>+    [center addObserver:self selector:@selector(_didChangeAutomaticDashSubstitutionEnabled:)
>         name:NSSpellCheckerDidChangeAutomaticDashSubstitutionNotification object:nil];
> #endif
> }
>@@ -6312,13 +6314,14 @@ - (void)setPreferences:(WebPreferences *)prefs
> 
>     WebPreferences *oldPrefs = _private->preferences;
> 
>-    [[NSNotificationCenter defaultCenter] removeObserver:self name:WebPreferencesChangedInternalNotification object:[self preferences]];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center removeObserver:self name:WebPreferencesChangedInternalNotification object:[self preferences]];
>     [WebPreferences _removeReferenceForIdentifier:[oldPrefs identifier]];
> 
>     _private->preferences = [prefs retain];
> 
>     // After registering for the notification, post it so the WebCore settings update.
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_preferencesChangedNotification:)
>+    [center addObserver:self selector:@selector(_preferencesChangedNotification:)
>         name:WebPreferencesChangedInternalNotification object:[self preferences]];
>     [self _preferencesChanged:[self preferences]];
>     [[self preferences] _postPreferencesChangedAPINotification];
>@@ -9944,9 +9947,10 @@ - (void)updateTextTouchBar
>         _private->_textTouchBarItemController = adoptNS([[WebTextTouchBarItemController alloc] initWithWebView:self]);
> 
>     if (!_private->_startedListeningToCustomizationEvents) {
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(touchBarDidExitCustomization:) name:NSTouchBarDidExitCustomization object:nil];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(touchBarWillEnterCustomization:) name:NSTouchBarWillEnterCustomization object:nil];
>-        [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(didChangeAutomaticTextCompletion:) name:NSSpellCheckerDidChangeAutomaticTextCompletionNotification object:nil];
>+        NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+        [center addObserver:self selector:@selector(touchBarDidExitCustomization:) name:NSTouchBarDidExitCustomization object:nil];
>+        [center addObserver:self selector:@selector(touchBarWillEnterCustomization:) name:NSTouchBarWillEnterCustomization object:nil];
>+        [center addObserver:self selector:@selector(didChangeAutomaticTextCompletion:) name:NSSpellCheckerDidChangeAutomaticTextCompletionNotification object:nil];
>         _private->_startedListeningToCustomizationEvents = YES;
>     }
> 
>diff --git a/Source/WebKitLegacy/mac/WebView/WebViewData.mm b/Source/WebKitLegacy/mac/WebView/WebViewData.mm
>index 8b49782b6bc..eeddf6c7efd 100644
>--- a/Source/WebKitLegacy/mac/WebView/WebViewData.mm
>+++ b/Source/WebKitLegacy/mac/WebView/WebViewData.mm
>@@ -141,16 +141,16 @@ - (instancetype)initWithView:(WebView *)view
> - (void)startObserving:(NSWindow *)window
> {
>     // An NSView derived object such as WebView cannot observe these notifications, because NSView itself observes them.
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowVisibilityChanged:)
>-                                                 name:@"NSWindowDidOrderOffScreenNotification" object:window];
>-    [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(_windowVisibilityChanged:)
>-                                                 name:@"_NSWindowDidBecomeVisible" object:window];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center addObserver:self selector:@selector(_windowVisibilityChanged:) name:@"NSWindowDidOrderOffScreenNotification" object:window];
>+    [center addObserver:self selector:@selector(_windowVisibilityChanged:) name:@"_NSWindowDidBecomeVisible" object:window];
> }
> 
> - (void)stopObserving:(NSWindow *)window
> {
>-    [[NSNotificationCenter defaultCenter] removeObserver:self name:@"NSWindowDidOrderOffScreenNotification" object:window];
>-    [[NSNotificationCenter defaultCenter] removeObserver:self name:@"_NSWindowDidBecomeVisible" object:window];
>+    NSNotificationCenter *center = [NSNotificationCenter defaultCenter];
>+    [center removeObserver:self name:@"NSWindowDidOrderOffScreenNotification" object:window];
>+    [center removeObserver:self name:@"_NSWindowDidBecomeVisible" object:window];
> }
> 
> - (void)_windowVisibilityChanged:(NSNotification *)notification
>diff --git a/Tools/ChangeLog b/Tools/ChangeLog
>index 2f0245f295b..dc199bd5f24 100644
>--- a/Tools/ChangeLog
>+++ b/Tools/ChangeLog
>@@ -1,3 +1,30 @@
>+2019-05-20  Joseph Pecoraro  <pecoraro@apple.com>
>+
>+        Remove unnecessary duplicate selector invocations
>+        https://bugs.webkit.org/show_bug.cgi?id=198066
>+
>+        Reviewed by Alex Christensen.
>+
>+        * DumpRenderTree/mac/DumpRenderTree.mm:
>+        (setDefaultsToConsistentValuesForTesting):
>+        * MiniBrowser/mac/AppDelegate.m:
>+        (defaultConfiguration):
>+        * TestWebKitAPI/Tests/mac/NavigatorLanguage.mm:
>+        (TestWebKitAPI::overrideAppleLanguages):
>+        * TestWebKitAPI/ios/mainIOS.mm:
>+        (main):
>+        * TestWebKitAPI/mac/InjectedBundleControllerMac.mm:
>+        (TestWebKitAPI::InjectedBundleController::platformInitialize):
>+        * TestWebKitAPI/mac/mainMac.mm:
>+        (main):
>+        * WebKitLauncher/main.m:
>+        (getLastVersionShown):
>+        (saveLastVersionShown):
>+        * WebKitTestRunner/InjectedBundle/mac/InjectedBundleMac.mm:
>+        (WTR::InjectedBundle::platformInitialize):
>+        * WebKitTestRunner/cocoa/TestControllerCocoa.mm:
>+        (WTR::TestController::platformAddTestOptions const):
>+
> 2019-05-20  Fujii Hironori  <Hironori.Fujii@sony.com>
> 
>         run-webkit-tests not gathering crash logs on Cygwin Python and Windows Python
>diff --git a/Tools/DumpRenderTree/mac/DumpRenderTree.mm b/Tools/DumpRenderTree/mac/DumpRenderTree.mm
>index 3e0d89525d3..a9a0514ec11 100644
>--- a/Tools/DumpRenderTree/mac/DumpRenderTree.mm
>+++ b/Tools/DumpRenderTree/mac/DumpRenderTree.mm
>@@ -1070,7 +1070,8 @@ static void setDefaultsToConsistentValuesForTesting()
>         @"com.apple.swipescrolldirection": @1,
>     };
> 
>-    [[NSUserDefaults standardUserDefaults] setValuesForKeysWithDictionary:dict];
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    [defaults setValuesForKeysWithDictionary:dict];
> 
>     NSDictionary *processInstanceDefaults = @{
>         WebDatabaseDirectoryDefaultsKey: [libraryPath stringByAppendingPathComponent:@"Databases"],
>@@ -1079,7 +1080,7 @@ static void setDefaultsToConsistentValuesForTesting()
>         WebKitResourceLoadStatisticsDirectoryDefaultsKey: [libraryPath stringByAppendingPathComponent:@"LocalStorage"],
>     };
> 
>-    [[NSUserDefaults standardUserDefaults] setVolatileDomain:processInstanceDefaults forName:NSArgumentDomain];
>+    [defaults setVolatileDomain:processInstanceDefaults forName:NSArgumentDomain];
> }
> 
> static void allocateGlobalControllers()
>diff --git a/Tools/MiniBrowser/mac/AppDelegate.m b/Tools/MiniBrowser/mac/AppDelegate.m
>index ef19f0d9c6e..9cb6c6eb11b 100644
>--- a/Tools/MiniBrowser/mac/AppDelegate.m
>+++ b/Tools/MiniBrowser/mac/AppDelegate.m
>@@ -98,11 +98,13 @@ - (void)awakeFromNib
>         
>         configuration.processPool = [[[WKProcessPool alloc] _initWithConfiguration:processConfiguration] autorelease];
> 
>+        NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+
>         NSArray<_WKExperimentalFeature *> *experimentalFeatures = [WKPreferences _experimentalFeatures];
>         for (_WKExperimentalFeature *feature in experimentalFeatures) {
>             BOOL enabled;
>-            if ([[NSUserDefaults standardUserDefaults] objectForKey:feature.key])
>-                enabled = [[NSUserDefaults standardUserDefaults] boolForKey:feature.key];
>+            if ([defaults objectForKey:feature.key])
>+                enabled = [defaults boolForKey:feature.key];
>             else
>                 enabled = [feature defaultValue];
>             [configuration.preferences _setEnabled:enabled forExperimentalFeature:feature];
>@@ -111,8 +113,8 @@ - (void)awakeFromNib
>         NSArray<_WKInternalDebugFeature *> *internalDebugFeatures = [WKPreferences _internalDebugFeatures];
>         for (_WKInternalDebugFeature *feature in internalDebugFeatures) {
>             BOOL enabled;
>-            if ([[NSUserDefaults standardUserDefaults] objectForKey:feature.key])
>-                enabled = [[NSUserDefaults standardUserDefaults] boolForKey:feature.key];
>+            if ([defaults objectForKey:feature.key])
>+                enabled = [defaults boolForKey:feature.key];
>             else
>                 enabled = [feature defaultValue];
>             [configuration.preferences _setEnabled:enabled forInternalDebugFeature:feature];
>diff --git a/Tools/TestWebKitAPI/Tests/mac/NavigatorLanguage.mm b/Tools/TestWebKitAPI/Tests/mac/NavigatorLanguage.mm
>index ee88cb4bf6b..010a890f816 100644
>--- a/Tools/TestWebKitAPI/Tests/mac/NavigatorLanguage.mm
>+++ b/Tools/TestWebKitAPI/Tests/mac/NavigatorLanguage.mm
>@@ -48,14 +48,15 @@ namespace TestWebKitAPI {
> 
> void overrideAppleLanguages(NSString *primaryLanguage)
> {
>-    RetainPtr<NSMutableDictionary> argumentDomain = adoptNS([[[NSUserDefaults standardUserDefaults] volatileDomainForName:NSArgumentDomain] mutableCopy]);
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    RetainPtr<NSMutableDictionary> argumentDomain = adoptNS([[defaults volatileDomainForName:NSArgumentDomain] mutableCopy]);
>     if (!argumentDomain)
>         argumentDomain = adoptNS([[NSMutableDictionary alloc] init]);
>     
>     [argumentDomain addEntriesFromDictionary:@{
>         @"AppleLanguages": @[primaryLanguage]
>     }];
>-    [[NSUserDefaults standardUserDefaults] setVolatileDomain:argumentDomain.get() forName:NSArgumentDomain];
>+    [defaults setVolatileDomain:argumentDomain.get() forName:NSArgumentDomain];
> 
>     [[NSDistributedNotificationCenter defaultCenter] postNotificationName:@"AppleLanguagePreferencesChangedNotification" object:nil userInfo:nil options:NSNotificationDeliverImmediately];
> 
>diff --git a/Tools/TestWebKitAPI/ios/mainIOS.mm b/Tools/TestWebKitAPI/ios/mainIOS.mm
>index cb8c0c55e76..8f3adf20f5a 100644
>--- a/Tools/TestWebKitAPI/ios/mainIOS.mm
>+++ b/Tools/TestWebKitAPI/ios/mainIOS.mm
>@@ -30,10 +30,11 @@ int main(int argc, char** argv)
> {
>     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
> 
>-    [[NSUserDefaults standardUserDefaults] removePersistentDomainForName:@"TestWebKitAPI"];
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    [defaults removePersistentDomainForName:@"TestWebKitAPI"];
> 
>     // Set up user defaults.
>-    NSMutableDictionary *argumentDomain = [[[NSUserDefaults standardUserDefaults] volatileDomainForName:NSArgumentDomain] mutableCopy];
>+    NSMutableDictionary *argumentDomain = [[defaults volatileDomainForName:NSArgumentDomain] mutableCopy];
>     if (!argumentDomain)
>         argumentDomain = [[NSMutableDictionary alloc] init];
>     
>@@ -42,7 +43,7 @@ int main(int argc, char** argv)
>                           nil];
> 
>     [argumentDomain addEntriesFromDictionary:dict];
>-    [[NSUserDefaults standardUserDefaults] setVolatileDomain:argumentDomain forName:NSArgumentDomain];
>+    [defaults setVolatileDomain:argumentDomain forName:NSArgumentDomain];
> 
>     bool passed = TestWebKitAPI::TestsController::singleton().run(argc, argv);
> 
>diff --git a/Tools/TestWebKitAPI/mac/InjectedBundleControllerMac.mm b/Tools/TestWebKitAPI/mac/InjectedBundleControllerMac.mm
>index 7b2bd7f9666..f61c9eca2db 100644
>--- a/Tools/TestWebKitAPI/mac/InjectedBundleControllerMac.mm
>+++ b/Tools/TestWebKitAPI/mac/InjectedBundleControllerMac.mm
>@@ -33,7 +33,8 @@ namespace TestWebKitAPI {
> void InjectedBundleController::platformInitialize()
> {
>     // Set up user defaults.
>-    NSMutableDictionary *argumentDomain = [[[NSUserDefaults standardUserDefaults] volatileDomainForName:NSArgumentDomain] mutableCopy];
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    NSMutableDictionary *argumentDomain = [[defaults volatileDomainForName:NSArgumentDomain] mutableCopy];
>     if (!argumentDomain)
>         argumentDomain = [[NSMutableDictionary alloc] init];
>     
>@@ -46,7 +47,7 @@ void InjectedBundleController::platformInitialize()
>                           nil];
> 
>     [argumentDomain addEntriesFromDictionary:dict];
>-    [[NSUserDefaults standardUserDefaults] setVolatileDomain:argumentDomain forName:NSArgumentDomain];
>+    [defaults setVolatileDomain:argumentDomain forName:NSArgumentDomain];
> 
>     [argumentDomain release];
> }
>diff --git a/Tools/TestWebKitAPI/mac/mainMac.mm b/Tools/TestWebKitAPI/mac/mainMac.mm
>index d312c67e576..6f4da00c8c8 100644
>--- a/Tools/TestWebKitAPI/mac/mainMac.mm
>+++ b/Tools/TestWebKitAPI/mac/mainMac.mm
>@@ -32,10 +32,11 @@ int main(int argc, char** argv)
> {
>     NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init];
> 
>-    [[NSUserDefaults standardUserDefaults] removePersistentDomainForName:@"TestWebKitAPI"];
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    [defaults removePersistentDomainForName:@"TestWebKitAPI"];
> 
>     // Set a user default for TestWebKitAPI to bypass all linked-on-or-after checks in WebKit
>-    NSMutableDictionary *argumentDomain = [[[NSUserDefaults standardUserDefaults] volatileDomainForName:NSArgumentDomain] mutableCopy];
>+    NSMutableDictionary *argumentDomain = [[defaults volatileDomainForName:NSArgumentDomain] mutableCopy];
>     if (!argumentDomain)
>         argumentDomain = [[NSMutableDictionary alloc] init];
>     
>@@ -44,7 +45,7 @@ int main(int argc, char** argv)
>                           nil];
> 
>     [argumentDomain addEntriesFromDictionary:dict];
>-    [[NSUserDefaults standardUserDefaults] setVolatileDomain:argumentDomain forName:NSArgumentDomain];
>+    [defaults setVolatileDomain:argumentDomain forName:NSArgumentDomain];
> 
>     [NSApplication sharedApplication];
>     _BeginEventReceiptOnThread(); // Makes window visibility notifications work (and possibly more).
>diff --git a/Tools/WebKitLauncher/main.m b/Tools/WebKitLauncher/main.m
>index 43155fd64cc..25d77f2e41b 100644
>--- a/Tools/WebKitLauncher/main.m
>+++ b/Tools/WebKitLauncher/main.m
>@@ -56,14 +56,16 @@ static void displayErrorAndQuit(NSString *title, NSString *message)
> 
> static int getLastVersionShown()
> {
>-    [[NSUserDefaults standardUserDefaults] registerDefaults:[NSDictionary dictionaryWithObject:@"-1" forKey:@"StartPageShownInVersion"]];
>-    return [[NSUserDefaults standardUserDefaults] integerForKey:@"StartPageShownInVersion"];
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    [defaults registerDefaults:[NSDictionary dictionaryWithObject:@"-1" forKey:@"StartPageShownInVersion"]];
>+    return [defaults integerForKey:@"StartPageShownInVersion"];
> }
> 
> static void saveLastVersionShown(int lastVersion)
> {
>-    [[NSUserDefaults standardUserDefaults] setInteger:lastVersion forKey:@"StartPageShownInVersion"];
>-    [[NSUserDefaults standardUserDefaults] synchronize];
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    [defaults setInteger:lastVersion forKey:@"StartPageShownInVersion"];
>+    [defaults synchronize];
> }
> 
> static NSString *getPathForStartPage()
>diff --git a/Tools/WebKitTestRunner/InjectedBundle/mac/InjectedBundleMac.mm b/Tools/WebKitTestRunner/InjectedBundle/mac/InjectedBundleMac.mm
>index 50b1b13d765..5af9eb6499b 100644
>--- a/Tools/WebKitTestRunner/InjectedBundle/mac/InjectedBundleMac.mm
>+++ b/Tools/WebKitTestRunner/InjectedBundle/mac/InjectedBundleMac.mm
>@@ -43,7 +43,8 @@ void InjectedBundle::platformInitialize(WKTypeRef initializationUserData)
>     setenv("XTYPE_ALLOW_AUTOACTIVATION", "1", 0);
> 
>     // Language was set up earlier in main(). Don't clobber it.
>-    NSArray *languages = [[[NSUserDefaults standardUserDefaults] volatileDomainForName:NSArgumentDomain] valueForKey:@"AppleLanguages"];
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    NSArray *languages = [[defaults volatileDomainForName:NSArgumentDomain] valueForKey:@"AppleLanguages"];
>     if (!languages)
>         languages = @[ @"en" ];
> 
>@@ -73,7 +74,7 @@ void InjectedBundle::platformInitialize(WKTypeRef initializationUserData)
>         @"com.apple.trackpad.forceClick": @1,
>     };
> 
>-    [[NSUserDefaults standardUserDefaults] setVolatileDomain:dict forName:NSArgumentDomain];
>+    [defaults setVolatileDomain:dict forName:NSArgumentDomain];
> 
>     // Underlying frameworks have already read AppleAntiAliasingThreshold default before we changed it.
>     // A distributed notification is delivered to all applications, but it should be harmless, and it's the only way to update all underlying frameworks anyway.
>diff --git a/Tools/WebKitTestRunner/cocoa/TestControllerCocoa.mm b/Tools/WebKitTestRunner/cocoa/TestControllerCocoa.mm
>index 4087735ba25..79a158e3d71 100644
>--- a/Tools/WebKitTestRunner/cocoa/TestControllerCocoa.mm
>+++ b/Tools/WebKitTestRunner/cocoa/TestControllerCocoa.mm
>@@ -126,9 +126,10 @@ WKPreferencesRef TestController::platformPreferences()
> 
> void TestController::platformAddTestOptions(TestOptions& options) const
> {
>-    if ([[NSUserDefaults standardUserDefaults] boolForKey:@"EnableProcessSwapOnNavigation"])
>+    NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
>+    if ([defaults boolForKey:@"EnableProcessSwapOnNavigation"])
>         options.contextOptions.enableProcessSwapOnNavigation = true;
>-    if ([[NSUserDefaults standardUserDefaults] boolForKey:@"EnableProcessSwapOnWindowOpen"])
>+    if ([defaults boolForKey:@"EnableProcessSwapOnWindowOpen"])
>         options.contextOptions.enableProcessSwapOnWindowOpen = true;
> }
>

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Attachments on bug 198066: 370297 | 370299 | 370326