Unreviewed buildfix after r144787. Add missing USE(GRAPHICS_SURFACE) guards.

* platform/graphics/texmap/coordinated/CoordinatedGraphicsScene.cpp:
(WebCore::CoordinatedGraphicsScene::setLayerState):
* platform/graphics/texmap/coordinated/CoordinatedGraphicsState.h:
(WebCore::CoordinatedGraphicsLayerState::CoordinatedGraphicsLayerState):

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@144885 268f45cc-cd09-0410-ab3c-d52691b4dbfc