[Chromium] Animation updates fail when using a canvas as a CSS backround-image style with -webkit-canvas
https://bugs.webkit.org/show_bug.cgi?id=103643
Reviewed by Stephen White.
.:
New test to verify that elements using a canvas as a style image
source are redrawn when the canvas is animated. Added as a manual test
because the bug was not reproducible in DumpRenderTree.
* ManualTests/animated-canvas-as-background.html: Added.
Source/WebCore:
CanvasRenderingContext2D::didDraw was not propagating the change
notification to observers in the accelerated compositing case.
Problem fixed by adding observer notifications.
New manual test: animated-canvas-as-background.html
* html/HTMLCanvasElement.cpp:
(WebCore::HTMLCanvasElement::didDraw):
The observer notification was factored out into a separate method
so that it can be invoked directly for accelerated compositing.
(WebCore):
(WebCore::HTMLCanvasElement::notifyObserversCanvasChanged):
* html/HTMLCanvasElement.h:
(HTMLCanvasElement):
* html/canvas/CanvasRenderingContext2D.cpp:
(WebCore::CanvasRenderingContext2D::didDraw):
Added observer notification call to trigger repainting of elements that
use this canvas for their style.
git-svn-id: https://svn.webkit.org/repository/webkit/trunk@136262
268f45cc-cd09-0410-ab3c-
d52691b4dbfc