Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: c6316d204111b06d2f6d6d66006257bcae6d78a5
      
https://github.com/WebKit/WebKit/commit/c6316d204111b06d2f6d6d66006257bcae6d78a5
  Author: Sam Weinig <[email protected]>
  Date:   2026-06-03 (Wed, 03 Jun 2026)

  Changed paths:
    M Source/WebCore/SaferCPPExpectations/UncheckedCallArgsCheckerExpectations
    M Source/WebCore/css/MediaQueryMatcher.cpp
    M Source/WebCore/css/MediaQueryMatcher.h
    M Source/WebCore/css/parser/SizesAttributeParser.cpp
    M Source/WebCore/css/query/MediaQueryEvaluator.cpp
    M Source/WebCore/css/query/MediaQueryEvaluator.h
    M Source/WebCore/dom/Document.cpp
    M Source/WebCore/dom/Document.h
    M Source/WebCore/html/HTMLImageElement.cpp
    M Source/WebCore/html/HTMLLinkElement.cpp
    M Source/WebCore/html/HTMLMediaElement.cpp
    M Source/WebCore/html/HTMLMetaElement.cpp
    M Source/WebCore/html/parser/HTMLPreloadScanner.cpp
    M Source/WebCore/html/parser/HTMLResourcePreloader.cpp
    M Source/WebCore/loader/LinkLoader.cpp
    M Source/WebCore/page/LocalFrame.cpp
    M Source/WebCore/platform/graphics/FontCascadeDescription.h
    M Source/WebCore/style/StyleResolver.cpp
    M Source/WebCore/style/StyleResolver.h
    M Source/WebCore/style/StyleScope.cpp

  Log Message:
  -----------
  Use a cached "initial style" on Document for all non-element context CSS 
value conversion
https://bugs.webkit.org/show_bug.cgi?id=316017

Reviewed by Antti Koivisto.

Adds a cached "initial style" on Document for all non-element context CSS value
conversions.  This simplifies and aligns media query users and removes the need
for the RuleMatchingBehavior::MatchOnlyUserAgentRules behavior.

* Source/WebCore/css/MediaQueryMatcher.cpp:
* Source/WebCore/css/MediaQueryMatcher.h:
* Source/WebCore/css/parser/SizesAttributeParser.cpp:
* Source/WebCore/css/query/MediaQueryEvaluator.cpp:
* Source/WebCore/css/query/MediaQueryEvaluator.h:
* Source/WebCore/dom/Document.cpp:
* Source/WebCore/dom/Document.h:
* Source/WebCore/html/HTMLImageElement.cpp:
* Source/WebCore/html/HTMLLinkElement.cpp:
* Source/WebCore/html/HTMLMediaElement.cpp:
* Source/WebCore/html/HTMLMetaElement.cpp:
* Source/WebCore/html/parser/HTMLPreloadScanner.cpp:
* Source/WebCore/html/parser/HTMLResourcePreloader.cpp:
* Source/WebCore/loader/LinkLoader.cpp:
* Source/WebCore/page/LocalFrame.cpp:
* Source/WebCore/platform/graphics/FontCascadeDescription.h:
* Source/WebCore/style/StyleResolver.cpp:
* Source/WebCore/style/StyleResolver.h:
* Source/WebCore/style/StyleScope.cpp:

Canonical link: https://commits.webkit.org/314476@main



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