Bug 240595

TestWebKitAPI.WebKit.CookieObserverCrash
is a constant crash (Assertion Failed) on Mac and iOS debug queues

History points to r294381 as the suspected regression point

HISTORY:
https://results.webkit.org/?suite=api-tests&test=TestWebKitAPI.WebKit.CookieObserverCrash

Crash-log:
 TestWebKitAPI.WebKit.CookieObserverCrash
        ASSERTION FAILED: m_cookieObservers.isEmpty()
        /Volumes/Data/worker/Apple-iOS-15-Simulator-Debug-Build/build/Source/WebKit/UIProcess/WebCookieManagerProxy.cpp(52) : virtual WebKit::WebCookieManagerProxy::~WebCookieManagerProxy()
        1   0x11795fa09 WTFCrash
        2   0x136839afb WTFCrashWithInfo(int, char const*, char const*, int)
        3   0x1384703da WebKit::WebCookieManagerProxy::~WebCookieManagerProxy()
        4   0x138470465 WebKit::WebCookieManagerProxy::~WebCookieManagerProxy()
        5   0x138470489 WebKit::WebCookieManagerProxy::~WebCookieManagerProxy()
        6   0x13876557c std::__1::default_delete<WebKit::WebCookieManagerProxy>::operator()(WebKit::WebCookieManagerProxy*) const
        7   0x1387654fc std::__1::unique_ptr<WebKit::WebCookieManagerProxy, std::__1::default_delete<WebKit::WebCookieManagerProxy> >::reset(WebKit::WebCookieManagerProxy*)
        8   0x138765499 std::__1::unique_ptr<WebKit::WebCookieManagerProxy, std::__1::default_delete<WebKit::WebCookieManagerProxy> >::~unique_ptr()
        9   0x138765475 std::__1::unique_ptr<WebKit::WebCookieManagerProxy, std::__1::default_delete<WebKit::WebCookieManagerProxy> >::~unique_ptr()
        10  0x138765455 WTF::UniqueRef<WebKit::WebCookieManagerProxy>::~UniqueRef()
        11  0x138751095 WTF::UniqueRef<WebKit::WebCookieManagerProxy>::~UniqueRef()
        12  0x138750f00 WebKit::NetworkProcessProxy::~NetworkProcessProxy()
        13  0x138751155 WebKit::NetworkProcessProxy::~NetworkProcessProxy()
        14  0x1387511d9 WebKit::NetworkProcessProxy::~NetworkProcessProxy()
        15  0x136c6f02f WTF::ThreadSafeRefCounted<WebKit::AuxiliaryProcessProxy, (WTF::DestructionThread)2>::deref() const::'lambda'()::operator()() const
        16  0x136c6efd9 WTF::Detail::CallableWrapper<WTF::ThreadSafeRefCounted<WebKit::AuxiliaryProcessProxy, (WTF::DestructionThread)2>::deref() const::'lambda'(), void>::call()
        17  0x11798f2d2 WTF::Function<void ()>::operator()() const
        18  0x1179e8c97 WTF::ensureOnMainRunLoop(WTF::Function<void ()>&&)
        19  0x136c6ecdc WTF::ThreadSafeRefCounted<WebKit::AuxiliaryProcessProxy, (WTF::DestructionThread)2>::deref() const
        20  0x136c6ec39 WebKit::AuxiliaryProcessProxy::deref()
        21  0x13860315e WTF::DefaultRefDerefTraits<WebKit::NetworkProcessProxy>::derefIfNotNull(WebKit::NetworkProcessProxy*)
        22  0x13863a9e9 WTF::RefPtr<WebKit::NetworkProcessProxy, WTF::RawPtrTraits<WebKit::NetworkProcessProxy>, WTF::DefaultRefDerefTraits<WebKit::NetworkProcessProxy> >::~RefPtr()
        23  0x13850d3e5 WTF::RefPtr<WebKit::NetworkProcessProxy, WTF::RawPtrTraits<WebKit::NetworkProcessProxy>, WTF::DefaultRefDerefTraits<WebKit::NetworkProcessProxy> >::~RefPtr()
        24  0x138849831 WebKit::WebsiteDataStore::~WebsiteDataStore()
        25  0x138849b45 WebKit::WebsiteDataStore::~WebsiteDataStore()
        26  0x137a5735f -[WKWebsiteDataStore dealloc]
        27  0x10ac527d7 objc_object::sidetable_release(bool, bool)
        28  0x137a6bcb9 WTF::RetainPtr<WKWebsiteDataStore>::~RetainPtr()
        29  0x137a6bc75 WTF::RetainPtr<WKWebsiteDataStore>::~RetainPtr()
        30  0x137a6bc59 LazyInitialized<WTF::RetainPtr<WKWebsiteDataStore> >::~LazyInitialized()
        31  0x137a4ccf5 LazyInitialized<WTF::RetainPtr<WKWebsiteDataStore> >::~LazyInitialized()
        Child process terminated with signal 11: Segmentation fault

Crash-Log URL:
https://build.webkit.org/#/builders/267/builds/2593/steps/18/logs/stdio