Process Scroll-gesture events from the compositor.

Process Scroll-gesture events from the compositor.
https://bugs.webkit.org/show_bug.cgi?id=77477

Patch by Sadrul Habib Chowdhury <sadrul@chromium.org> on 2012-02-07
Reviewed by James Robinson.

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

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@106987 268f45cc-cd09-0410-ab3c-d52691b4dbfc