Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 6c9e1ec889c870931695469c47d99a528975ed79
      
https://github.com/WebKit/WebKit/commit/6c9e1ec889c870931695469c47d99a528975ed79
  Author: Simon Fraser <[email protected]>
  Date:   2026-01-30 (Fri, 30 Jan 2026)

  Changed paths:
    M LayoutTests/TestExpectations
    M LayoutTests/imported/w3c/resources/resource-files.json
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/WEB_FEATURES.yml
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/abspos-contributes-to-static-parent-bounds.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustment-followed-by-scrollBy-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustment-followed-by-scrollBy.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustments-in-scroll-event-handler.tentative-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustments-in-scroll-event-handler.tentative.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-001-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-001.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-002-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-002.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-003-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-003.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-004-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-004.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/anchor-inside-textarea.tentative-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/anchor-inside-textarea.tentative.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-insert-line-at-top.tentative-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-insert-line-at-top.tentative.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-near-cursor.tentative-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-near-cursor.tentative.html
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/dirty-contents-reselect-anchor.tentative.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/editable-scroll-anchor-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/editable-scroll-anchor.html
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-in-excluded-subtree.html
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-outside-scroller.html
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/fragment-scrolling-anchors.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/fresh-table-col-crash.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/ignore-adjustments-while-scrolling-to-anchor.tentative-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/ignore-adjustments-while-scrolling-to-anchor.tentative.html
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/infinite-scroll-event.tentative-expected.txt
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/infinite-scroll-event.tentative.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/nested-overflow-subtree-layout-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/nested-overflow-subtree-layout-vertical-ref.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/parsing/WEB_FEATURES.yml
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/parsing/w3c-import.log
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/shadow-dom-subscroller.html
    M 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/support/w3c-import.log
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/table-col-and-dead-row-group-crash.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/vertical-rl-viewport-size-change-000-expected.xht
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/vertical-rl-viewport-size-change-001-expected.xht
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/w3c-import.log
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-001-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-001.html
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-002-expected.txt
    A 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-002.html
    R 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-expected.txt
    R 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset.html
    M LayoutTests/platform/ios/TestExpectations

  Log Message:
  -----------
  Synchronize WPT css/css-scroll-anchoring
https://bugs.webkit.org/show_bug.cgi?id=306640
rdar://169297822

Reviewed by Vitor Roriz and Sammy Gill.

Upstream commit: 
https://github.com/web-platform-tests/wpt/commit/aac8513c52747fc0f850d8aba93deea1d0c8c112

* LayoutTests/TestExpectations:
* LayoutTests/imported/w3c/resources/resource-files.json:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/WEB_FEATURES.yml:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/abspos-contributes-to-static-parent-bounds.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustment-followed-by-scrollBy-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustment-followed-by-scrollBy.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustments-in-scroll-event-handler.tentative-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/adjustments-in-scroll-event-handler.tentative.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-001-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-001.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-002-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-002.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-003-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-003.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-004-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/after-scrollable-range-shrinkage-004.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/anchor-inside-textarea.tentative-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/anchor-inside-textarea.tentative.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-insert-line-at-top.tentative-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-insert-line-at-top.tentative.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-near-cursor.tentative-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/contenteditable-near-cursor.tentative.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/dirty-contents-reselect-anchor.tentative.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/editable-scroll-anchor-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/editable-scroll-anchor.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-in-excluded-subtree.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/focused-element-outside-scroller.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/fragment-scrolling-anchors.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/fresh-table-col-crash.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/ignore-adjustments-while-scrolling-to-anchor.tentative-expected.txt:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/ignore-adjustments-while-scrolling-to-anchor.tentative.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/infinite-scroll-event.tentative-expected.txt:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/infinite-scroll-event.tentative.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/nested-overflow-subtree-layout-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/nested-overflow-subtree-layout-vertical-ref.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/parsing/WEB_FEATURES.yml:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/parsing/w3c-import.log:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/shadow-dom-subscroller.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/start-edge-in-block-layout-direction.html:
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/support/w3c-import.log:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/table-col-and-dead-row-group-crash.html:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/vertical-rl-viewport-size-change-000-expected.xht:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/vertical-rl-viewport-size-change-001-expected.xht:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/w3c-import.log:
 Added.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-001-expected.txt:
 Copied from 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-expected.txt.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-001.html:
 Copied from 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset.html.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-002-expected.txt:
 Renamed from 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-expected.txt.
* 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset-002.html:
 Renamed from 
LayoutTests/imported/w3c/web-platform-tests/css/css-scroll-anchoring/zero-scroll-offset.html.
* LayoutTests/platform/ios/TestExpectations:

Canonical link: https://commits.webkit.org/306538@main



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