cc: Rename LayerTreeHost to LayerTreeHostInProcess.

cc/trees/layer_tree_host_in_process.h

 // Copyright 2011 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_HOST_H_
-#define CC_TREES_LAYER_TREE_HOST_H_
+#ifndef CC_TREES_LAYER_TREE_HOST_IN_PROCESS_H_
+#define CC_TREES_LAYER_TREE_HOST_IN_PROCESS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <limits>
 #include <memory>
 #include <set>
 #include <string>
 #include <unordered_map>
 #include <vector>
@@ skipping 12 matching lines @@
 #include "cc/input/layer_selection_bound.h"
 #include "cc/input/scrollbar.h"
 #include "cc/input/top_controls_state.h"
 #include "cc/layers/layer_collections.h"
 #include "cc/layers/layer_list_iterator.h"
 #include "cc/output/output_surface.h"
 #include "cc/output/swap_promise.h"
 #include "cc/resources/resource_format.h"
 #include "cc/trees/compositor_mode.h"
 #include "cc/trees/layer_tree.h"
+#include "cc/trees/layer_tree_host.h"
 #include "cc/trees/layer_tree_host_client.h"
-#include "cc/trees/layer_tree_host_interface.h"
 #include "cc/trees/layer_tree_settings.h"
 #include "cc/trees/proxy.h"
 #include "cc/trees/surface_sequence_generator.h"
 #include "cc/trees/swap_promise_manager.h"
 #include "third_party/skia/include/core/SkColor.h"
 #include "ui/gfx/geometry/rect.h"
 
-namespace gpu {
-class GpuMemoryBufferManager;
-}
-
 namespace cc {
-
+class AnimationHost;
 class AnimationEvents;
-class AnimationHost;
 class BeginFrameSource;
 class ClientPictureCache;
 class EnginePictureCache;
 class HeadsUpDisplayLayer;
 class ImageSerializationProcessor;
 class Layer;
+class LayerTreeHostClient;
 class LayerTreeHostImpl;
 class LayerTreeHostImplClient;
 class LayerTreeHostSingleThreadClient;
 class LayerTreeMutator;
 class PropertyTrees;
 class Region;
 class RemoteProtoChannel;
 class RenderingStatsInstrumentation;
 class ResourceProvider;
 class ResourceUpdateQueue;
 class SharedBitmapManager;
 class TaskGraphRunner;
 class TopControlsManager;
 struct PendingPageScaleAnimation;
 struct RenderingStats;
 struct ScrollAndScaleSet;
 
 namespace proto {
 class LayerTreeHost;
 }
 
-// This class is being refactored to an interface, see LayerTreeHostInterface,
-// which is the API for the cc embedder. When adding new code to this class,
-// consider the following:
-// 1) If its state/data that gets pushed to the LayerTreeImpl during commit, add
-//    it to the LayerTree.
-// 2) If it's a call from the embedder, add it to the LayerTreeHostInterface.
-// 3) If it's a call from any of the internal cc classes, i.e., LayerTree or
-//    PropertyTreeBuilder, etc., add it to the LayerTreeHostInterface.
-// 4) If it's a notification from the impl thread or a call from Proxy, add it
-//    to this class.
-// This class will be renamed to LayerTreeHostInProcess and will be the
-// LayerTreeHost implementation for when the impl thread for the compositor runs
-// in the same process, and thus uses a Proxy.
-class CC_EXPORT LayerTreeHost : public LayerTreeHostInterface {
+class CC_EXPORT LayerTreeHostInProcess : public LayerTreeHost {
  public:
   // TODO(sad): InitParams should be a movable type so that it can be
   // std::move()d to the Create* functions.
   struct CC_EXPORT InitParams {
     LayerTreeHostClient* client = nullptr;
     SharedBitmapManager* shared_bitmap_manager = nullptr;
     gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager = nullptr;
     TaskGraphRunner* task_graph_runner = nullptr;
     LayerTreeSettings const* settings = nullptr;
     scoped_refptr<base::SingleThreadTaskRunner> main_task_runner;
     std::unique_ptr<BeginFrameSource> external_begin_frame_source;
     ImageSerializationProcessor* image_serialization_processor = nullptr;
     std::unique_ptr<AnimationHost> animation_host;
 
     InitParams();
     ~InitParams();
   };
 
   // The SharedBitmapManager will be used on the compositor thread.
-  static std::unique_ptr<LayerTreeHostInterface> CreateThreaded(
+  static std::unique_ptr<LayerTreeHostInProcess> CreateThreaded(

[Khushal, 2016/09/15 00:56:20]

I made these return the in process one itself. If the caller wants to keep the
interface, which only the renderer compositor would need to, then they can do
it.

       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
       InitParams* params);
 
-  static std::unique_ptr<LayerTreeHost> CreateSingleThreaded(
+  static std::unique_ptr<LayerTreeHostInProcess> CreateSingleThreaded(
       LayerTreeHostSingleThreadClient* single_thread_client,
       InitParams* params);
 
-  static std::unique_ptr<LayerTreeHostInterface> CreateRemoteServer(
+  static std::unique_ptr<LayerTreeHostInProcess> CreateRemoteServer(
       RemoteProtoChannel* remote_proto_channel,
       InitParams* params);
 
-  // The lifetime of this LayerTreeHost is tied to the lifetime of the remote
-  // server LayerTreeHost. It should be created on receiving
+  // The lifetime of this LayerTreeHostInProcess is tied to the lifetime of the
+  // remote server LayerTreeHostInProcess. It should be created on receiving
   // CompositorMessageToImpl::InitializeImpl message and destroyed on receiving
   // a CompositorMessageToImpl::CloseImpl message from the server. This ensures
   // that the client will not send any compositor messages once the
-  // LayerTreeHost on the server is destroyed.
-  static std::unique_ptr<LayerTreeHostInterface> CreateRemoteClient(
+  // LayerTreeHostInProcess on the server is destroyed.
+  static std::unique_ptr<LayerTreeHostInProcess> CreateRemoteClient(
       RemoteProtoChannel* remote_proto_channel,
       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
       InitParams* params);
 
-  ~LayerTreeHost() override;
+  ~LayerTreeHostInProcess() override;
 
-  // LayerTreeHostInterface implementation.
+  // LayerTreeHost implementation.
   int GetId() const override;
   int SourceFrameNumber() const override;
   LayerTree* GetLayerTree() override;
   const LayerTree* GetLayerTree() const override;
   UIResourceManager* GetUIResourceManager() const override;
   TaskRunnerProvider* GetTaskRunnerProvider() const override;
   const LayerTreeSettings& GetSettings() const override;
   void SetSurfaceClientId(uint32_t client_id) override;
   void SetLayerTreeMutator(std::unique_ptr<LayerTreeMutator> mutator) override;
   void QueueSwapPromise(std::unique_ptr<SwapPromise> swap_promise) override;
@@ skipping 22 matching lines @@
   void DidStopFlinging() override;
   void SetDebugState(const LayerTreeDebugState& debug_state) override;
   const LayerTreeDebugState& GetDebugState() const override;
   int ScheduleMicroBenchmark(
       const std::string& benchmark_name,
       std::unique_ptr<base::Value> value,
       const MicroBenchmark::DoneCallback& callback) override;
   bool SendMessageToMicroBenchmark(int id,
                                    std::unique_ptr<base::Value> value) override;
   SurfaceSequenceGenerator* GetSurfaceSequenceGenerator() override;
+  void SetNextCommitWaitsForActivation() override;
+  void ResetGpuRasterizationTracking() override;
 
-  // LayerTreeHost interface to Proxy.
+  // LayerTreeHostInProcess interface to Proxy.
   void WillBeginMainFrame();
   void DidBeginMainFrame();
   void BeginMainFrame(const BeginFrameArgs& args);
   void BeginMainFrameNotExpectedSoon();
   void AnimateLayers(base::TimeTicks monotonic_frame_begin_time);
   void RequestMainFrameUpdate();
   void FinishCommitOnImplThread(LayerTreeHostImpl* host_impl);
   void WillCommit();
   void CommitComplete();
   void RequestNewOutputSurface();
@@ skipping 14 matching lines @@
   bool gpu_rasterization_histogram_recorded() const {
     return gpu_rasterization_histogram_recorded_;
   }
 
   void CollectRenderingStats(RenderingStats* stats) const;
 
   RenderingStatsInstrumentation* rendering_stats_instrumentation() const {
     return rendering_stats_instrumentation_.get();
   }
 
-  void SetNextCommitWaitsForActivation();
-
   void SetAnimationEvents(std::unique_ptr<AnimationEvents> events);
 
   bool has_gpu_rasterization_trigger() const {
     return has_gpu_rasterization_trigger_;
   }
 
   Proxy* proxy() const { return proxy_.get(); }
 
-  // Serializes the parts of this LayerTreeHost that is needed for a commit to a
-  // protobuf message. Not all members are serialized as they are not helpful
-  // for remote usage.
+  // Serializes the parts of this LayerTreeHostInProcess that is needed for a
+  // commit to a protobuf message. Not all members are serialized as they are
+  // not helpful for remote usage.
   // The |swap_promise_list_| is transferred to the serializer in
   // |swap_promises|.
   void ToProtobufForCommit(
       proto::LayerTreeHost* proto,
       std::vector<std::unique_ptr<SwapPromise>>* swap_promises);
 
-  // Deserializes the protobuf into this LayerTreeHost before a commit. The
-  // expected input is a serialized remote LayerTreeHost. After deserializing
-  // the protobuf, the normal commit-flow should continue.
+  // Deserializes the protobuf into this LayerTreeHostInProcess before a commit.
+  // The expected input is a serialized remote LayerTreeHost. After
+  // deserializing the protobuf, the normal commit-flow should continue.
   void FromProtobufForCommit(const proto::LayerTreeHost& proto);
 
   bool IsSingleThreaded() const;
   bool IsThreaded() const;
   bool IsRemoteServer() const;
   bool IsRemoteClient() const;
 
   ImageSerializationProcessor* image_serialization_processor() const {
     return image_serialization_processor_;
   }
 
   EnginePictureCache* engine_picture_cache() const {
     return engine_picture_cache_ ? engine_picture_cache_.get() : nullptr;
   }
 
   ClientPictureCache* client_picture_cache() const {
     return client_picture_cache_ ? client_picture_cache_.get() : nullptr;
   }
 
-  void ResetGpuRasterizationTracking();
-
  protected:
   // Allow tests to inject the LayerTree.
-  LayerTreeHost(InitParams* params,
-                CompositorMode mode,
-                std::unique_ptr<LayerTree> layer_tree);
-  LayerTreeHost(InitParams* params, CompositorMode mode);
+  LayerTreeHostInProcess(InitParams* params,
+                         CompositorMode mode,
+                         std::unique_ptr<LayerTree> layer_tree);
+  LayerTreeHostInProcess(InitParams* params, CompositorMode mode);
 
   void InitializeThreaded(
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
       std::unique_ptr<BeginFrameSource> external_begin_frame_source);
   void InitializeSingleThreaded(
       LayerTreeHostSingleThreadClient* single_thread_client,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
       std::unique_ptr<BeginFrameSource> external_begin_frame_source);
   void InitializeRemoteServer(
@@ skipping 98 matching lines @@
   gpu::GpuMemoryBufferManager* gpu_memory_buffer_manager_;
   TaskGraphRunner* task_graph_runner_;
 
   ImageSerializationProcessor* image_serialization_processor_;
   std::unique_ptr<EnginePictureCache> engine_picture_cache_;
   std::unique_ptr<ClientPictureCache> client_picture_cache_;
 
   SurfaceSequenceGenerator surface_sequence_generator_;
   uint32_t num_consecutive_frames_suitable_for_gpu_ = 0;
 
-  DISALLOW_COPY_AND_ASSIGN(LayerTreeHost);
+  DISALLOW_COPY_AND_ASSIGN(LayerTreeHostInProcess);
 };
 
 }  // namespace cc
 
-#endif  // CC_TREES_LAYER_TREE_HOST_H_
+#endif  // CC_TREES_LAYER_TREE_HOST_IN_PROCESS_H_