Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: bd20485fedcd7603fded7c7f2eb011738d61e8d9
      
https://github.com/WebKit/WebKit/commit/bd20485fedcd7603fded7c7f2eb011738d61e8d9
  Author: Chris Dumez <[email protected]>
  Date:   2025-04-02 (Wed, 02 Apr 2025)

  Changed paths:
    M Source/WebCore/loader/LocalFrameLoaderClient.h
    M Source/WebCore/page/LocalFrameView.cpp
    M Source/WebCore/page/LocalFrameView.h
    M Source/WebKit/WebProcess/WebCoreSupport/WebLocalFrameLoaderClient.cpp
    M Source/WebKit/WebProcess/WebCoreSupport/WebLocalFrameLoaderClient.h

  Log Message:
  -----------
  http/tests/security/wrong-global-object-after-javascript-url.html hits an 
assertion
https://bugs.webkit.org/show_bug.cgi?id=290774
rdar://148121607

Reviewed by Alan Baradlay.

We were hitting the following assertion in 
`WebLocalFrameLoaderClient::dispatchDidReachLayoutMilestone()`:
```
ASSERT(!m_frame->isMainFrame() || 
webPage->corePage()->settings().suppressesIncrementalRendering() || 
m_didCompletePageTransition);
```

This basically means that we're sending a layout milestone notification even 
though `m_didCompletePageTransition`
is false. `m_didCompletePageTransition` is set to false during the early page 
load to avoid flashing white content
on navigation.

To address the issue, update 
LocalFrameView::fireLayoutRelatedMilestonesIfNeeded() to ask the client if we 
should
suppress layout milestones or not.

* Source/WebCore/loader/LocalFrameLoaderClient.h:
* Source/WebCore/page/LocalFrameView.cpp:
(WebCore::LocalFrameView::fireLayoutRelatedMilestonesIfNeeded):
* Source/WebKit/WebProcess/WebCoreSupport/WebLocalFrameLoaderClient.h:

Canonical link: https://commits.webkit.org/293120@main



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