cc: Apply occlusion before creating quads in RenderSurfaceImpl.

cc/test/mock_quad_culler.cc

Index: cc/test/mock_quad_culler.cc
diff --git a/cc/test/mock_quad_culler.cc b/cc/test/mock_quad_culler.cc
index d15f126aed5fc79b51fb756e21259abe58bb8378..1f76f7da7268c9c83b0b1bb216e4a3318e77855a 100644
--- a/cc/test/mock_quad_culler.cc
+++ b/cc/test/mock_quad_culler.cc
@@ -30,6 +30,16 @@ SharedQuadState* MockQuadCuller::UseSharedQuadState(
 gfx::Rect MockQuadCuller::UnoccludedContentRect(
     const gfx::Rect& content_rect,
     const gfx::Transform& draw_transform) {
+  DCHECK(draw_transform.IsIdentity());
+  gfx::Rect result = content_rect;
+  result.Subtract(occluded_content_rect_);
+  return result;
+}
+
+gfx::Rect MockQuadCuller::UnoccludedContributingSurfaceContentRect(
+    gfx::Rect& content_rect,
+    gfx::Transform& draw_transform) {
+  DCHECK(draw_transform.IsIdentity());
   gfx::Rect result = content_rect;
   result.Subtract(occluded_content_rect_);
   return result;