tree 76ae152b06d062e59820cad0d9c2c3a7a34b85ed
parent c99cf813c1a31e482b4fe16888297e577642938c
author ajuma@chromium.org <ajuma@chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1558014896 +0000
committer ajuma@chromium.org <ajuma@chromium.org@268f45cc-cd09-0410-ab3c-d52691b4dbfc> 1558014896 +0000

[IntersectionObserver] Regression: No initial observation when nothing else triggers rendering
https://bugs.webkit.org/show_bug.cgi?id=197891

Reviewed by Simon Fraser.

Source/WebCore:

Schedule a rendering update whenever a new IntersectionObserver target is added.

Test: intersection-observer/initial-observation.html

* page/IntersectionObserver.cpp:
(WebCore::IntersectionObserver::observe):

LayoutTests:

Add a test where other timers that can schedule rendering updates are disabled,
in order to verify that IntersectionObserver is scheduling rendering updates
itself.

* intersection-observer/initial-observation.html: Added.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@245396 268f45cc-cd09-0410-ab3c-d52691b4dbfc