[chromium] Remove WebLayerTreeViewClient::(will|did)BeginFrame
https://bugs.webkit.org/show_bug.cgi?id=110928

Reviewed by Adrienne Walker.

Source/Platform:

* chromium/public/WebLayerTreeViewClient.h:

Source/WebKit/chromium:

* src/WebViewImpl.cpp:
* src/WebViewImpl.h:
* tests/WebLayerTreeViewTestCommon.h:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144129 268f45cc-cd09-0410-ab3c-d52691b4dbfc