cc: Apply occlusion before creating quads in RenderSurfaceImpl.

cc/test/mock_quad_culler.h

Index: cc/test/mock_quad_culler.h
diff --git a/cc/test/mock_quad_culler.h b/cc/test/mock_quad_culler.h
index 543b8ec190646a9c5d091a698afa9e99908ab7be..2d9486b17c8cf8c3c7b8cad0df7acb267028227b 100644
--- a/cc/test/mock_quad_culler.h
+++ b/cc/test/mock_quad_culler.h
@@ -26,6 +26,9 @@ class MockQuadCuller : public QuadSink {
   virtual gfx::Rect UnoccludedContentRect(const gfx::Rect& content_rect,
                                           const gfx::Transform& draw_transform)
       OVERRIDE;
+  virtual gfx::Rect UnoccludedContributingSurfaceContentRect(
+      const gfx::Rect& content_rect,
+      const gfx::Transform& draw_transform) OVERRIDE;
   virtual bool MaybeAppend(scoped_ptr<DrawQuad> draw_quad) OVERRIDE;
   virtual void Append(scoped_ptr<DrawQuad> draw_quad) OVERRIDE;
 
@@ -38,6 +41,11 @@ class MockQuadCuller : public QuadSink {
     occluded_content_rect_ = occluded;
   }
 
+  void set_occluded_content_rect_for_contributing_surface(
+      const gfx::Rect& occluded) {
+    occluded_content_rect_for_contributing_surface_ = occluded;
+  }
+
   void clear_lists() {
     active_quad_list_->clear();
     active_shared_quad_state_list_->clear();
@@ -49,6 +57,7 @@ class MockQuadCuller : public QuadSink {
   SharedQuadStateList* active_shared_quad_state_list_;
   SharedQuadStateList shared_quad_state_storage_;
   gfx::Rect occluded_content_rect_;
+  gfx::Rect occluded_content_rect_for_contributing_surface_;
 };
 
 }  // namespace cc