cc: Pass Occlusion instead of OcclusionTracker to LayerImpls

cc/test/fake_picture_layer_impl.cc

 // Copyright 2013 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.
 
 #include "cc/test/fake_picture_layer_impl.h"
 
 #include <vector>
 #include "cc/resources/tile.h"
 #include "cc/trees/layer_tree_impl.h"
 
@@ skipping 37 matching lines @@
       release_resources_count_(0) {
 }
 
 scoped_ptr<LayerImpl> FakePictureLayerImpl::CreateLayerImpl(
     LayerTreeImpl* tree_impl) {
   return make_scoped_ptr(new FakePictureLayerImpl(tree_impl, id()));
 }
 
 void FakePictureLayerImpl::AppendQuads(
     RenderPass* render_pass,
-    const OcclusionTracker<LayerImpl>& occlusion_tracker,
+    const Occlusion& occlusion_in_content_space,
     AppendQuadsData* append_quads_data) {
   PictureLayerImpl::AppendQuads(
-      render_pass, occlusion_tracker, append_quads_data);
+      render_pass, occlusion_in_content_space, append_quads_data);
   ++append_quads_count_;
 }
 
 gfx::Size FakePictureLayerImpl::CalculateTileSize(
     const gfx::Size& content_bounds) const {
   if (fixed_tile_size_.IsEmpty()) {
     return PictureLayerImpl::CalculateTileSize(content_bounds);
   }
 
   return fixed_tile_size_;
@@ skipping 107 matching lines @@
              ? has_valid_tile_priorities_
              : PictureLayerImpl::HasValidTilePriorities();
 }
 
 void FakePictureLayerImpl::ReleaseResources() {
   PictureLayerImpl::ReleaseResources();
   ++release_resources_count_;
 }
 
 }  // namespace cc