[webkit-changes] [WebKit/WebKit] b703b0: Fix scrollbar-gutter invalidation

[Luke Warlow]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: b703b067b883426bca606987e3d1ac7041c554a0
      https://github.com/WebKit/WebKit/commit/b703b067b883426bca606987e3d1ac7041c554a0
  Author: Luke Warlow <luke at warlow.dev>
  Date:   2023-06-16 (Fri, 16 Jun 2023)

  Changed paths:
    A LayoutTests/imported/w3c/web-platform-tests/css/css-overflow/scrollbar-gutter-dynamic-002-expected.html
    A LayoutTests/imported/w3c/web-platform-tests/css/css-overflow/scrollbar-gutter-dynamic-002-ref.html
    A LayoutTests/imported/w3c/web-platform-tests/css/css-overflow/scrollbar-gutter-dynamic-002.html
    M Source/WebCore/rendering/style/RenderStyle.cpp

  Log Message:
  -----------
  Fix scrollbar-gutter invalidation
https://bugs.webkit.org/show_bug.cgi?id=258207

Reviewed by Tim Nguyen.

Add diff check for scrollbarGutter to RenderStyle rareDataChangeRequiresLayout.

* LayoutTests/imported/w3c/web-platform-tests/css/css-overflow/scrollbar-gutter-dynamic-002-expected.html: Added.
* LayoutTests/imported/w3c/web-platform-tests/css/css-overflow/scrollbar-gutter-dynamic-002-ref.html: Added.
* LayoutTests/imported/w3c/web-platform-tests/css/css-overflow/scrollbar-gutter-dynamic-002.html: Added.
* Source/WebCore/rendering/style/RenderStyle.cpp:
(WebCore::rareDataChangeRequiresLayout):

Canonical link: https://commits.webkit.org/265254@main