[webkit-changes] [WebKit/WebKit] 493fe8: `FontSizeAdjust`'s `metric` member is uninitialized

[Vitaly Dyachkov]

  Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 493fe8cbc12cfd94a262852d3c0d0fad3ac8ffb3
      https://github.com/WebKit/WebKit/commit/493fe8cbc12cfd94a262852d3c0d0fad3ac8ffb3
  Author: Vitaly Dyachkov <vitaly at igalia.com>
  Date:   2023-05-18 (Thu, 18 May 2023)

  Changed paths:
    A LayoutTests/fast/css/font-size-adjust-none-no-relayout-expected.txt
    A LayoutTests/fast/css/font-size-adjust-none-no-relayout.html
    M Source/WebCore/platform/graphics/FontSizeAdjust.h
    M Source/WebCore/rendering/style/RenderStyle.h
    M Source/WebCore/style/StyleChange.h
    M Tools/TestWebKitAPI/CMakeLists.txt
    M Tools/TestWebKitAPI/TestWebKitAPI.xcodeproj/project.pbxproj
    A Tools/TestWebKitAPI/Tests/WebCore/RenderStyleChange.cpp

  Log Message:
  -----------
  `FontSizeAdjust`'s `metric` member is uninitialized
https://bugs.webkit.org/show_bug.cgi?id=256034

Reviewed by Myles C. Maxfield.

Because of it two otherwise identical `RenderStyle`s
will be considered different and can cause full relayout
in some circumstances.

* Source/WebCore/platform/graphics/FontSizeAdjust.h:

Canonical link: https://commits.webkit.org/264195@main