Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: a8c31653e18a1227f2140465ef04dc6d2cd1edcc
https://github.com/WebKit/WebKit/commit/a8c31653e18a1227f2140465ef04dc6d2cd1edcc
Author: Ben Nham <[email protected]>
Date: 2026-08-26 (Wed, 26 Aug 2026)
Changed paths:
A
LayoutTests/http/tests/site-isolation/only-broadcast-frame-geometry-if-remote-frame-exists-expected.txt
A
LayoutTests/http/tests/site-isolation/only-broadcast-frame-geometry-if-remote-frame-exists.html
M Source/WebCore/dom/Document.cpp
M Source/WebCore/page/Frame.cpp
M Source/WebCore/page/Page.cpp
M Source/WebCore/page/Page.h
M Source/WebCore/page/RemoteFrame.cpp
Log Message:
-----------
[Site Isolation] Avoid sending per-frame layout info if there are no remote
frame processes
https://bugs.webkit.org/show_bug.cgi?id=322535
rdar://185830113
Reviewed by Megan Gardner, Alex Christensen, and Kiet Ho.
We currently send frame layout info on each rendering update from the
WebProcess to the UIProcess
when Site Isolation is enabled. This is unnecessary if there is only one
process involved in
rendering the page.
To make this cheaper, we cache whether the page has a remote frame. The cache
is invalidated on
every FrameTree mutation, which should be relatively rare.
Tests:
http/tests/site-isolation/only-broadcast-frame-geometry-if-remote-frame-exists.html
* Source/WebCore/page/Page.cpp:
(WebCore::Page::doAfterUpdateRendering):
(WebCore::Page::setMainFrame):
(WebCore::Page::frameTreeContainsRemoteFrame const):
* Source/WebCore/dom/Document.cpp:
(WebCore::Document::updateIntersectionObservers):
* Source/WebCore/page/FrameTree.cpp:
(WebCore::FrameTree::didMutateTree):
(WebCore::FrameTree::detachFromParent):
(WebCore::FrameTree::appendChild):
(WebCore::FrameTree::removeChild):
(WebCore::FrameTree::replaceChild):
* Source/WebCore/page/FrameTree.h:
(WebCore::FrameTree::detachFromParent): Deleted.
* Source/WebCore/page/Page.h:
(WebCore::Page::didMutateFrameTree):
*
LayoutTests/http/tests/site-isolation/only-broadcast-frame-geometry-if-remote-frame-exists-expected.txt:
Added.
*
LayoutTests/http/tests/site-isolation/only-broadcast-frame-geometry-if-remote-frame-exists.html:
Added.
Canonical link: https://commits.webkit.org/319884@main
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