cc: Remove all blimp code from cc.

cc/blimp/compositor_state_deserializer.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_BLIMP_COMPOSITOR_STATE_DESERIALIZER_H_
-#define CC_BLIMP_COMPOSITOR_STATE_DESERIALIZER_H_
-
-#include <unordered_map>
-
-#include "base/callback.h"
-#include "base/macros.h"
-#include "base/memory/weak_ptr.h"
-#include "cc/base/cc_export.h"
-#include "cc/blimp/synced_property_remote.h"
-#include "ui/gfx/geometry/scroll_offset.h"
-
-namespace cc {
-namespace proto {
-class ClientStateUpdate;
-class LayerNode;
-class LayerProperties;
-class LayerTree;
-class LayerTreeHost;
-}  // namespace proto
-
-class ClientPictureCache;
-class DeserializedContentLayerClient;
-class Layer;
-class LayerFactory;
-class LayerTreeHostInProcess;
-
-class CC_EXPORT CompositorStateDeserializerClient {
- public:
-  virtual ~CompositorStateDeserializerClient() {}
-
-  // Used to inform the client that the local state received from the engine was
-  // modified on the impl thread and a ClientStateUpdate needs to be scheduled
-  // to synchronize it with the main thread on the engine.
-  virtual void DidUpdateLocalState() = 0;
-};
-
-// Deserializes the compositor updates into the LayerTreeHost.
-class CC_EXPORT CompositorStateDeserializer {
- public:
-  CompositorStateDeserializer(
-      LayerTreeHostInProcess* layer_tree_host,
-      std::unique_ptr<ClientPictureCache> client_picture_cache,
-      CompositorStateDeserializerClient* client);
-  ~CompositorStateDeserializer();
-
-  // Returns the local layer on the client for the given |engine_layer_id|.
-  Layer* GetLayerForEngineId(int engine_layer_id) const;
-
-  // Deserializes the |layer_tree_host_proto| into the LayerTreeHost.
-  void DeserializeCompositorUpdate(
-      const proto::LayerTreeHost& layer_tree_host_proto);
-
-  // Allows tests to inject the LayerFactory.
-  void SetLayerFactoryForTesting(std::unique_ptr<LayerFactory> layer_factory);
-
-  // Updates any viewport related deltas that have been reported to the main
-  // thread from the impl thread.
-  void ApplyViewportDeltas(const gfx::Vector2dF& inner_delta,
-                           const gfx::Vector2dF& outer_delta,
-                           const gfx::Vector2dF& elastic_overscroll_delta,
-                           float page_scale,
-                           float top_controls_delta);
-
-  // Pulls a state update for changes reported to the main thread, that need to
-  // be synchronized with the associated state on the engine main thread.
-  void PullClientStateUpdate(proto::ClientStateUpdate* client_state_update);
-
-  // Informs that the client state update pulled was applied to the main thread
-  // on the engine.
-  // Note that this assumes that the state update provided to the engine was
-  // reflected back by the engine. If the application of this update resulted in
-  // any changes to the main thread state on the engine, these must be
-  // de-serialized and applied to the LayerTreeHost before a frame is committed
-  // to the impl thread.
-  void DidApplyStateUpdatesOnEngine();
-
-  // Sends any deltas that have been received on the main thread, but have not
-  // yet been applied to the main thread state back to the impl thread. This
-  // must be called for every main frame sent to the impl thread.
-  void SendUnappliedDeltasToLayerTreeHost();
-
- private:
-  using SyncedRemoteScrollOffset =
-      SyncedPropertyRemote<AdditionGroup<gfx::ScrollOffset>>;
-
-  // A holder for the Layer and any data tied to it.
-  struct LayerData {
-    LayerData();
-    LayerData(LayerData&& other);
-    ~LayerData();
-
-    LayerData& operator=(LayerData&& other);
-
-    scoped_refptr<Layer> layer;
-
-    // Set only for PictureLayers.
-    std::unique_ptr<DeserializedContentLayerClient> content_layer_client;
-
-    SyncedRemoteScrollOffset synced_scroll_offset;
-
-   private:
-    DISALLOW_COPY_AND_ASSIGN(LayerData);
-  };
-
-  using EngineIdToLayerMap = std::unordered_map<int, LayerData>;
-  // Map of the scrollbar layer id to the corresponding scroll layer id. Both
-  // ids refer to the engine layer id.
-  using ScrollbarLayerToScrollLayerId = std::unordered_map<int, int>;
-
-  void SychronizeLayerTreeState(const proto::LayerTree& layer_tree_proto);
-  void SynchronizeLayerState(
-      const proto::LayerProperties& layer_properties_proto);
-  void SynchronizeLayerHierarchyRecursive(
-      Layer* layer,
-      const proto::LayerNode& layer_node,
-      EngineIdToLayerMap* new_layer_map,
-      ScrollbarLayerToScrollLayerId* scrollbar_layer_to_scroll_layer);
-  scoped_refptr<Layer> GetLayerAndAddToNewMap(
-      const proto::LayerNode& layer_node,
-      EngineIdToLayerMap* new_layer_map,
-      ScrollbarLayerToScrollLayerId* scrollbar_layer_to_scroll_layer);
-
-  void LayerScrolled(int engine_layer_id);
-
-  scoped_refptr<Layer> GetLayer(int engine_layer_id) const;
-  DeserializedContentLayerClient* GetContentLayerClient(
-      int engine_layer_id) const;
-  int GetClientIdFromEngineId(int engine_layer_id) const;
-  LayerData* GetLayerData(int engine_layer_id);
-
-  std::unique_ptr<LayerFactory> layer_factory_;
-
-  LayerTreeHostInProcess* layer_tree_host_;
-  std::unique_ptr<ClientPictureCache> client_picture_cache_;
-  CompositorStateDeserializerClient* client_;
-
-  EngineIdToLayerMap engine_id_to_layer_;
-  SyncedPropertyRemote<ScaleGroup> synced_page_scale_;
-
-  base::WeakPtrFactory<CompositorStateDeserializer> weak_factory_;
-
-  DISALLOW_COPY_AND_ASSIGN(CompositorStateDeserializer);
-};
-
-}  // namespace cc
-
-#endif  // CC_BLIMP_COMPOSITOR_STATE_DESERIALIZER_H_