Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 492d8d6e0d68ce003cb082d5a3f81aae13d6b6ad
      
https://github.com/WebKit/WebKit/commit/492d8d6e0d68ce003cb082d5a3f81aae13d6b6ad
  Author: Connor O'Brien <[email protected]>
  Date:   2026-10-01 (Thu, 01 Oct 2026)

  Changed paths:
    M Source/WTF/wtf/SystemTracing.h
    M Source/WebCore/page/scrolling/mac/ScrollingTreeScrollingNodeDelegateMac.mm

  Log Message:
  -----------
  WebKit should signpost when scrolling rubberbanding occurs
https://bugs.webkit.org/show_bug.cgi?id=324835
<rdar://187714869>

Reviewed by Simon Fraser.

This commit adds a WTFEmitSignpostAlways event to mark when rubberbandding 
state changes.
This marks the start and end of the rubberband. This is only emitted if 
scrollingPerformanceTestingEnabled.

Canonical link: https://commits.webkit.org/322415@main



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