[webkit-changes] [WebKit/WebKit] 2a3d9d: showRenderTree should tell if formatting context r...

[Alan Baradlay]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 2a3d9d0c5c772476cf2c5b8e470373b59698ee5c
      https://github.com/WebKit/WebKit/commit/2a3d9d0c5c772476cf2c5b8e470373b59698ee5c
  Author: Alan Baradlay <zalan at apple.com>
  Date:   2025-02-14 (Fri, 14 Feb 2025)

  Changed paths:
    M Source/WebCore/layout/integration/LayoutIntegrationBoxTreeUpdater.cpp
    M Source/WebCore/rendering/RenderObject.cpp

  Log Message:
  -----------
  showRenderTree should tell if formatting context root runs modern or legacy layout
https://bugs.webkit.org/show_bug.cgi?id=287652

Reviewed by Antti Koivisto.

While with inline layout it is relatively easy to tell if block container runs IFC or legacy line layout by looking at the inline tree, other FC roots don't normally produce such subtrees.

1. Add an extra field to tell if FC runs modern or legacy layout
2. Remove redundant hasLayer(S)crollableArea. It is already part of layer tree dump.

* Source/WebCore/layout/integration/LayoutIntegrationBoxTreeUpdater.cpp:
(WebCore::LayoutIntegration::showInlineContent):
* Source/WebCore/layout/integration/LayoutIntegrationCoverage.cpp:
(WebCore::LayoutIntegration::canUseForFlexLayoutWithReason):
* Source/WebCore/rendering/RenderObject.cpp:
(WebCore::outputRenderTreeLegend):
(WebCore::RenderObject::outputRenderObject const):

Canonical link: https://commits.webkit.org/290398@main



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