cc: Apply occlusion before creating quads in UIResourceLayerImpl.

cc/test/layer_test_common.h

 // Copyright 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CC_TEST_LAYER_TEST_COMMON_H_
 #define CC_TEST_LAYER_TEST_COMMON_H_
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/test/fake_layer_tree_host.h"
@@ skipping 58 matching lines @@
     void CalcDrawProps(const gfx::Size& viewport_size);
     void AppendQuadsWithOcclusion(LayerImpl* layer_impl,
                                   const gfx::Rect& occluded);
 
     OutputSurface* output_surface() const {
       return host_->host_impl()->output_surface();
     }
     ResourceProvider* resource_provider() const {
       return host_->host_impl()->resource_provider();
     }
+    FakeLayerTreeHostImpl* host_impl() const { return host_->host_impl(); }
     const QuadList& quad_list() const { return quad_culler_.quad_list(); }
 
    private:
     scoped_ptr<FakeLayerTreeHost> host_;
     scoped_ptr<LayerImpl> root_layer_impl_;
     MockQuadCuller quad_culler_;
   };
 };
 
 }  // namespace cc
 
 #endif  // CC_TEST_LAYER_TEST_COMMON_H_