[webkit-changes] [WebKit/WebKit] 262ca1: Unreviewed, reverting 278591 at main.

[Commit Queue]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 262ca15ab0d016ab968f29f5587e60bf4c51475b
      https://github.com/WebKit/WebKit/commit/262ca15ab0d016ab968f29f5587e60bf4c51475b
  Author: Commit Queue <commit-queue at webkit.org>
  Date:   2024-05-10 (Fri, 10 May 2024)

  Changed paths:
    M LayoutTests/http/tests/site-isolation/scrolling/basic-scrolling-tree.html
    R LayoutTests/http/tests/site-isolation/scrolling/multiple-root-frames-expected.txt
    R LayoutTests/http/tests/site-isolation/scrolling/multiple-root-frames.html
    R LayoutTests/http/tests/site-isolation/scrolling/remove-root-frame-expected.txt
    R LayoutTests/http/tests/site-isolation/scrolling/remove-root-frame.html
    M LayoutTests/platform/ios/TestExpectations
    M Source/WTF/WTF.xcodeproj/project.pbxproj
    M Source/WTF/wtf/CMakeLists.txt
    R Source/WTF/wtf/SmallMap.h
    M Source/WebCore/dom/Document.cpp
    M Source/WebCore/page/LocalFrame.cpp
    M Source/WebCore/page/LocalFrameView.cpp
    M Source/WebCore/page/LocalFrameView.h
    M Source/WebCore/page/scrolling/AsyncScrollingCoordinator.cpp
    M Source/WebCore/page/scrolling/AsyncScrollingCoordinator.h
    M Source/WebCore/page/scrolling/ScrollingCoordinator.h
    M Source/WebCore/page/scrolling/ScrollingStateTree.h
    M Source/WebCore/page/scrolling/ScrollingTree.cpp
    M Source/WebCore/page/scrolling/ScrollingTree.h
    M Source/WebCore/page/scrolling/ScrollingTreeFrameHostingNode.cpp
    M Source/WebCore/page/scrolling/ScrollingTreeFrameHostingNode.h
    M Source/WebCore/page/scrolling/ThreadedScrollingCoordinator.cpp
    M Source/WebCore/platform/ScrollableArea.h
    M Source/WebCore/rendering/RenderLayerBacking.cpp
    M Source/WebCore/rendering/RenderLayerCompositor.cpp
    M Source/WebCore/rendering/RenderLayerScrollableArea.cpp
    M Source/WebCore/rendering/RenderLayerScrollableArea.h
    M Source/WebCore/rendering/RenderListBox.cpp
    M Source/WebCore/rendering/RenderListBox.h
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.h
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm
    M Source/WebKit/WebProcess/Plugins/PDF/PDFPluginBase.h
    M Source/WebKit/WebProcess/Plugins/PDF/PDFPluginBase.mm
    M Source/WebKit/WebProcess/Plugins/PDF/UnifiedPDF/UnifiedPDFPlugin.mm
    M Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm
    M Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollingCoordinator.h
    M Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteScrollingCoordinator.mm
    M Tools/TestWebKitAPI/Tests/WTF/SmallSet.cpp

  Log Message:
  -----------
  Unreviewed, reverting 278591 at main.
https://bugs.webkit.org/show_bug.cgi?id=274023

Speculative revert due to performance regression

Reverted changeset:

"[Site Isolation] Properly create scrolling tree for web process with multiple root frames"
https://bugs.webkit.org/show_bug.cgi?id=272721
https://commits.webkit.org/278591@main

Canonical link: https://commits.webkit.org/278631@main



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