Bug 209113

Summary:	MiniBrowser does not respect changes to Internal Features in Legacy WebKit window
Product:	WebKit	Reporter:	Daniel Bates <dbates>
Component:	Tools / Tests	Assignee:	Nobody <webkit-unassigned>
Status:	NEW ---
Severity:	Normal	CC:	zalan
Priority:	P2
Version:	WebKit Local Build
Hardware:	Unspecified
OS:	Unspecified
See Also:	https://bugs.webkit.org/show_bug.cgi?id=209112

Description Daniel Bates 2020-03-14 13:23:24 PDT

Steps to reproduce:

1. Run Tools/Scripts/debug-minibrowser --debug
2. Set breakpoint in LineLayout::canUseFor(): <https://trac.webkit.org/browser/trunk/Source/WebCore/layout/integration/LayoutIntegrationLineLayout.cpp?rev=258400#L69>
3. Tell lldb to run – to launch MiniBrowser
4. Disable Next-generation line layout integration (LFC) under Settings > Internal Features.
5. Visit attachment #393589 [details] (from bug #209112)

When breakpoint is hit, evaluate "RuntimeEnabledFeatures::sharedFeatures().layoutFormattingContextIntegrationEnabled()". It will return true. But it should be false.