[chromium] Tell WebInputHandlerClient when end of input is reached for current vsync period
https://bugs.webkit.org/show_bug.cgi?id=103648

Patch by Sami Kyostila <skyostil@chromium.org> on 2012-12-03
Reviewed by James Robinson.

Let the WebInputHandlerClient know when we've received the final input event
for the current vsync period.

Test: WebCompositorInputHandlerImplTest.lastInputEventForVSync

Source/Platform:

* chromium/public/WebInputHandlerClient.h:
(WebKit::WebInputHandlerClient::didReceiveLastInputEventForVSync):
(WebInputHandlerClient):

Source/WebKit/chromium:

* src/WebCompositorInputHandlerImpl.cpp:
(WebKit::WebCompositorInputHandlerImpl::handleInputEvent):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk/Source/Platform/chromium/public@136421 268f45cc-cd09-0410-ab3c-d52691b4dbfc