Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 1dd806726df81407e24fd393b02c1012148f6dce
https://github.com/WebKit/WebKit/commit/1dd806726df81407e24fd393b02c1012148f6dce
Author: Per Arne Vollan <[email protected]>
Date: 2026-02-13 (Fri, 13 Feb 2026)
Changed paths:
M Source/WebKit/UIProcess/RemotePageProxy.cpp
M Source/WebKit/UIProcess/WebPageProxy.cpp
M Source/WebKit/UIProcess/WebPageProxy.h
Log Message:
-----------
[Site Isolation] An iframe WebContent process can potentially be shortly
suspended on launch
https://bugs.webkit.org/show_bug.cgi?id=307679
rdar://170234688
Reviewed by Sihui Liu.
This is because we drop the lifetime activity just before taking a visibility
activity.
This patch switches the ordering and moves the code to the RemotePageProxy
constructor.
Furthermore, this patch is making sure we take the activities also in the cases
where
the WebContent process tree has inconsistensies in the activity state. In
theory, there
should be no such inconsistency, but in case there is, this change will guard
against
that. Initial measurements also show that this change is a significant
improvement in
page load performance.
* Source/WebKit/UIProcess/RemotePageProxy.cpp:
(WebKit::RemotePageProxy::RemotePageProxy):
(WebKit::RemotePageProxy::injectPageIntoNewProcess):
* Source/WebKit/UIProcess/WebPageProxy.cpp:
(WebKit::WebPageProxy::hasValidVisibleActivity const):
(WebKit::WebPageProxy::hasValidAudibleActivity const):
(WebKit::WebPageProxy::hasValidCapturingActivity const):
(WebKit::WebPageProxy::hasValidMutedCaptureAssertion const):
(WebKit::WebPageProxy::hasValidMainFrameVisibleActivity const):
(WebKit::WebPageProxy::hasValidMainFrameAudibleActivity const):
(WebKit::WebPageProxy::hasValidMainFrameCapturingActivity const):
(WebKit::WebPageProxy::hasValidMainFrameMutedCaptureAssertion const):
(WebKit::WebPageProxy::hasValidMainFrameNetworkActivity const):
(WebKit::WebPageProxy::takeActivitiesOnRemotePage):
* Source/WebKit/UIProcess/WebPageProxy.h:
Canonical link: https://commits.webkit.org/307546@main
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