Branch: refs/heads/main
  Home:   https://github.com/WebKit/WebKit
  Commit: 7f648983fdd68cbb19cb5caaaf16f17e569f1540
      
https://github.com/WebKit/WebKit/commit/7f648983fdd68cbb19cb5caaaf16f17e569f1540
  Author: Qianlang Chen <[email protected]>
  Date:   2026-01-22 (Thu, 22 Jan 2026)

  Changed paths:
    M Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml
    M Source/WebKit/Shared/MonotonicObjectIdentifier.h
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.h
    M 
Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.messages.in
    M Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm
    M 
Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteLayerTreeDrawingAreaProxyMac.mm
    M 
Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm

  Log Message:
  -----------
  Web Inspector broken and shows up blank
rdar://168607298
https://bugs.webkit.org/show_bug.cgi?id=305961

Reviewed by Pascoe and BJ Burg.

305784@main caused Web Inspector to show up blank. Revert it and the
patch made on top, 305899@main.

* Source/WTF/Scripts/Preferences/UnifiedWebPreferences.yaml:
* Source/WebKit/Shared/MonotonicObjectIdentifier.h:
(WebKit::MonotonicObjectIdentifier::isHashTableDeletedValue const):
(WebKit::MonotonicObjectIdentifier::isHashTableEmptyValue const): Deleted.
* Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.h:
(WebKit::ProcessState::ProcessState): Deleted.
(WTF::HashTraits<WebKit::ProcessState>::emptyValue): Deleted.
(WTF::HashTraits<WebKit::ProcessState>::isEmptyValue): Deleted.
* 
Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.messages.in:
* Source/WebKit/UIProcess/RemoteLayerTree/RemoteLayerTreeDrawingAreaProxy.mm:
(WebKit::RemoteLayerTreeDrawingAreaProxy::RemoteLayerTreeDrawingAreaProxy):
(WebKit::RemoteLayerTreeDrawingAreaProxy::addRemotePageDrawingAreaProxy):
(WebKit::RemoteLayerTreeDrawingAreaProxy::nextMainFrameLayerTreeTransactionID 
const):
(WebKit::RemoteLayerTreeDrawingAreaProxy::processStateForConnection):
(WebKit::RemoteLayerTreeDrawingAreaProxy::processStateForIdentifier const):
(WebKit::RemoteLayerTreeDrawingAreaProxy::notifyPendingCommitLayerTree):
(WebKit::RemoteLayerTreeDrawingAreaProxy::commitLayerTree):
(WebKit::RemoteLayerTreeDrawingAreaProxy::maybePauseDisplayRefreshCallbacks):
(WebKit::operator<<):
(WebKit::RemoteLayerTreeDrawingAreaProxy::ProcessState::canSendDisplayDidRefresh):
(WebKit::RemoteLayerTreeDrawingAreaProxy::didRefreshDisplay):
(WebKit::RemoteLayerTreeDrawingAreaProxy::waitForDidUpdateActivityState):
(WebKit::ProcessState::ProcessState): Deleted.
(WebKit::RemoteLayerTreeDrawingAreaProxy::notifyFlushingLayerTree): Deleted.
(WebKit::ProcessState::canSendDisplayDidRefresh): Deleted.
* 
Source/WebKit/UIProcess/RemoteLayerTree/mac/RemoteLayerTreeDrawingAreaProxyMac.mm:
(WebKit::RemoteLayerTreeDrawingAreaProxyMac::windowScreenDidChange):
* 
Source/WebKit/WebProcess/WebPage/RemoteLayerTree/RemoteLayerTreeDrawingArea.mm:
(WebKit::RemoteLayerTreeDrawingArea::updateRendering):

This commit include:

Revert "Change RemoteLayerTreeDrawingAreaProxy::ProcessState to track a set of 
pending commits, rather than a single state machine."

This reverts commit a327fd79c613902d96e90b7cf8c43e92e6885835.

Revert "Enable AllowMultipleLayerTreeCommitPending by default."

This reverts commit 4bc6712902a298016f5000a6581900239830e6fc.

Canonical link: https://commits.webkit.org/306030@main



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