cc: Pass Occlusion instead of OcclusionTracker to LayerImpls

cc/layers/delegated_renderer_layer_impl.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_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_
 #define CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_
 
 #include "base/containers/hash_tables.h"
 #include "base/memory/scoped_ptr.h"
 #include "cc/base/cc_export.h"
@@ skipping 17 matching lines @@
       override;
   virtual bool HasDelegatedContent() const override;
   virtual bool HasContributingDelegatedRenderPasses() const override;
   virtual RenderPassId FirstContributingRenderPassId() const override;
   virtual RenderPassId NextContributingRenderPassId(
       RenderPassId previous) const override;
   virtual void ReleaseResources() override;
   virtual bool WillDraw(DrawMode draw_mode,
                         ResourceProvider* resource_provider) override;
   virtual void AppendQuads(RenderPass* render_pass,
-                           const OcclusionTracker<LayerImpl>& occlusion_tracker,
+                           const Occlusion& occlusion_in_content_space,
                            AppendQuadsData* append_quads_data) override;
   virtual void PushPropertiesTo(LayerImpl* layer) override;
 
   void AppendContributingRenderPasses(RenderPassSink* render_pass_sink);
 
   // Creates an ID with the resource provider for the child renderer
   // that will be sending quads to the layer. Registers the callback to
   // inform when resources are no longer in use.
   void CreateChildIdIfNeeded(const ReturnCallback& return_callback);
 
@@ skipping 22 matching lines @@
                                 AppendQuadsData* append_quads_data);
 
   void SetRenderPasses(RenderPassList* render_passes_in_draw_order);
   void ClearRenderPasses();
 
   // Returns |true| if the delegated_render_pass_id is part of the current
   // frame and can be converted.
   bool ConvertDelegatedRenderPassId(RenderPassId delegated_render_pass_id,
                                     RenderPassId* output_render_pass_id) const;
 
-  void AppendRenderPassQuads(
-      RenderPass* render_pass,
-      const OcclusionTracker<LayerImpl>& occlusion_tracker,
-      AppendQuadsData* append_quads_data,
-      const RenderPass* delegated_render_pass,
-      const gfx::Size& frame_size) const;
+  void AppendRenderPassQuads(RenderPass* render_pass,
+                             const Occlusion& occlusion_in_content_space,
+                             AppendQuadsData* append_quads_data,
+                             const RenderPass* delegated_render_pass,
+                             const gfx::Size& frame_size) const;
 
   // LayerImpl overrides.
   virtual const char* LayerTypeAsString() const override;
 
   bool have_render_passes_to_push_;
   float inverse_device_scale_factor_;
   RenderPassList render_passes_in_draw_order_;
   base::hash_map<RenderPassId, int> render_passes_index_by_id_;
   ResourceProvider::ResourceIdArray resources_;
 
   int child_id_;
   bool own_child_id_;
 
   DISALLOW_COPY_AND_ASSIGN(DelegatedRendererLayerImpl);
 };
 
 }  // namespace cc
 
 #endif  // CC_LAYERS_DELEGATED_RENDERER_LAYER_IMPL_H_