[chromium] Fix continuous painting mode

[chromium] Fix continuous painting mode
https://bugs.webkit.org/show_bug.cgi?id=110788

Patch by James Robinson <jamesr@chromium.org> on 2013-02-26
Reviewed by Adrienne Walker.

Recent instrumentation shuffling caused WebViewImpl::didBeginFrame to no longer be called, which
broke continuous painting.  Since continuous painting mode is meant to simply invalidate layers
on each frame, it's a better fit for the animation system. This moves the invalidation calls
into WebViewImpl::updateAnimations along with other animation type things.

Tested manually by enabling continuous painting mode in the inspector. There aren't any automated
tests in WebKit for this feature.

* src/WebViewImpl.cpp:
(WebKit::WebViewImpl::setContinuousPaintingEnabled):
(WebKit::WebViewImpl::didBeginFrame):
(WebKit::WebViewImpl::updateAnimations):
* src/painting/ContinuousPainter.cpp:
(WebKit::ContinuousPainter::setNeedsDisplayRecursive):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@144017 268f45cc-cd09-0410-ab3c-d52691b4dbfc