cc: Remove all blimp code from cc.

cc/trees/layer_tree.h

 // Copyright 2016 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_TREES_LAYER_TREE_H_
 #define CC_TREES_LAYER_TREE_H_
 
 #include <memory>
 #include <unordered_map>
 #include <unordered_set>
 
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "cc/base/cc_export.h"
 #include "cc/input/event_listener_properties.h"
 #include "cc/input/layer_selection_bound.h"
 #include "cc/layers/layer_collections.h"
 #include "cc/layers/layer_list_iterator.h"
 #include "cc/trees/mutator_host_client.h"
 #include "cc/trees/property_tree.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/color_space.h"
 #include "ui/gfx/geometry/size.h"
 
 namespace base {
 class TimeDelta;
 }  // namespace base
 
 namespace cc {
-
-namespace proto {
-class LayerTree;
-}  // namespace proto
-
-class ClientPictureCache;
-class EnginePictureCache;
 class HeadsUpDisplayLayer;
 class Layer;
 class LayerTreeHost;
 class LayerTreeImpl;
 class LayerTreeSettings;
 class MutatorHost;
 struct PendingPageScaleAnimation;
 
 class CC_EXPORT LayerTree : public MutatorHostClient {
  public:
@@ skipping 108 matching lines @@
   void RemoveLayerShouldPushProperties(Layer* layer);
   std::unordered_set<Layer*>& LayersThatShouldPushProperties();
   bool LayerNeedsPushPropertiesForTesting(Layer* layer) const;
 
   virtual void SetNeedsMetaInfoRecomputation(
       bool needs_meta_info_recomputation);
   bool needs_meta_info_recomputation() const {
     return needs_meta_info_recomputation_;
   }
 
-  void set_engine_picture_cache(EnginePictureCache* cache) {
-    engine_picture_cache_ = cache;
-  }
-  EnginePictureCache* engine_picture_cache() const {
-    return engine_picture_cache_;
-  }
-  void set_client_picture_cache(ClientPictureCache* cache) {
-    client_picture_cache_ = cache;
-  }
-  ClientPictureCache* client_picture_cache() const {
-    return client_picture_cache_;
-  }
-
   void SetPageScaleFromImplSide(float page_scale);
   void SetElasticOverscrollFromImplSide(gfx::Vector2dF elastic_overscroll);
   gfx::Vector2dF elastic_overscroll() const { return elastic_overscroll_; }
 
   void UpdateHudLayer(bool show_hud_info);
   HeadsUpDisplayLayer* hud_layer() const { return hud_layer_.get(); }
 
   virtual void SetNeedsFullTreeSync();
   bool needs_full_tree_sync() const { return needs_full_tree_sync_; }
 
   void SetPropertyTreesNeedRebuild();
 
   void PushPropertiesTo(LayerTreeImpl* tree_impl,
                         float unapplied_page_scale_delta);
 
-  void ToProtobuf(proto::LayerTree* proto);
-
   MutatorHost* mutator_host() const { return mutator_host_; }
 
   Layer* LayerByElementId(ElementId element_id) const;
   void RegisterElement(ElementId element_id,
                        ElementListType list_type,
                        Layer* layer);
   void UnregisterElement(ElementId element_id,
                          ElementListType list_type,
                          Layer* layer);
   void SetElementIdsForTesting();
@@ skipping 93 matching lines @@
   LayerIdMap layer_id_map_;
 
   using ElementLayersMap = std::unordered_map<ElementId, Layer*, ElementIdHash>;
   ElementLayersMap element_layers_map_;
 
   bool in_paint_layer_contents_;
 
   MutatorHost* mutator_host_;
   LayerTreeHost* layer_tree_host_;
 
-  // TODO(khushalsagar): Make these go away once we transition blimp to an
-  // external embedder.
-  EnginePictureCache* engine_picture_cache_;
-  ClientPictureCache* client_picture_cache_;
-
   DISALLOW_COPY_AND_ASSIGN(LayerTree);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_H_