[webkit-changes] [WebKit/WebKit] 30d2bb: [Flex] Fix imported/w3c/web-platform-tests/css/css...

[Alan Baradlay]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 30d2bb50e9efa40233b88b5ff1d2063a8732a478
      https://github.com/WebKit/WebKit/commit/30d2bb50e9efa40233b88b5ff1d2063a8732a478
  Author: Alan Baradlay <zalan at apple.com>
  Date:   2024-07-23 (Tue, 23 Jul 2024)

  Changed paths:
    M LayoutTests/TestExpectations
    M Source/WebCore/rendering/RenderBlock.cpp

  Log Message:
  -----------
  [Flex] Fix imported/w3c/web-platform-tests/css/css-flexbox/fieldset-baseline-alignment.html
https://bugs.webkit.org/show_bug.cgi?id=276955

Reviewed by Antti Koivisto.

Current behavior:
  inline formatting context root floors baseline to int.
  regular block container returns fractional value when the block itself has non-integral logical top value.

This patch aligns regular block container baseline behavior with block containers acting as IFC roots.

* LayoutTests/TestExpectations: webkit.org/b/276915 takes care of fieldset baseline, while this change makes sure -expectation.html renders the same way.
* Source/WebCore/rendering/RenderBlock.cpp:
(WebCore::RenderBlock::firstLineBaseline const):
(WebCore::RenderBlock::lastLineBaseline const):

Canonical link: https://commits.webkit.org/281259@main



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