Remove external begin frame source parameter and settings

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_IN_PROCESS_H_
 #define CC_TREES_LAYER_TREE_HOST_IN_PROCESS_H_
 
 #include <stddef.h>
 #include <stdint.h>
 
@@ skipping 73 matching lines @@
  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<LayerTreeHostInProcess> CreateThreaded(
       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner,
@@ skipping 143 matching lines @@
 
  protected:
   // Allow tests to inject the LayerTree.
   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);
+      scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner);
   void InitializeSingleThreaded(
       LayerTreeHostSingleThreadClient* single_thread_client,
-      scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
-      std::unique_ptr<BeginFrameSource> external_begin_frame_source);
+      scoped_refptr<base::SingleThreadTaskRunner> main_task_runner);
   void InitializeRemoteServer(
       RemoteProtoChannel* remote_proto_channel,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner);
   void InitializeRemoteClient(
       RemoteProtoChannel* remote_proto_channel,
       scoped_refptr<base::SingleThreadTaskRunner> main_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> impl_task_runner);
   void InitializeForTesting(
       std::unique_ptr<TaskRunnerProvider> task_runner_provider,
-      std::unique_ptr<Proxy> proxy_for_testing,
-      std::unique_ptr<BeginFrameSource> external_begin_frame_source);
+      std::unique_ptr<Proxy> proxy_for_testing);
   void InitializePictureCacheForTesting();
   void SetTaskRunnerProviderForTesting(
       std::unique_ptr<TaskRunnerProvider> task_runner_provider);
   void SetUIResourceManagerForTesting(
       std::unique_ptr<UIResourceManager> ui_resource_manager);
 
   // shared_bitmap_manager(), gpu_memory_buffer_manager(), and
   // task_graph_runner() return valid values only until the LayerTreeHostImpl is
   // created in CreateLayerTreeHostImpl().
   SharedBitmapManager* shared_bitmap_manager() const {
@@ skipping 16 matching lines @@
 
  private:
   friend class LayerTreeHostSerializationTest;
 
   // This is the number of consecutive frames in which we want the content to be
   // suitable for GPU rasterization before re-enabling it.
   enum { kNumFramesToConsiderBeforeGpuRasterization = 60 };
 
   void ApplyViewportDeltas(ScrollAndScaleSet* info);
   void ApplyPageScaleDeltaFromImplSide(float page_scale_delta);
-  void InitializeProxy(
-      std::unique_ptr<Proxy> proxy,
-      std::unique_ptr<BeginFrameSource> external_begin_frame_source);
+  void InitializeProxy(std::unique_ptr<Proxy> proxy);
 
   bool DoUpdateLayers(Layer* root_layer);
   void UpdateHudLayer();
 
   bool AnimateLayersRecursive(Layer* current, base::TimeTicks time);
 
   void CalculateLCDTextMetricsCallback(Layer* layer);
 
   void SetPropertyTreesNeedRebuild();
 
@@ skipping 45 matching lines @@
 
   SurfaceSequenceGenerator surface_sequence_generator_;
   uint32_t num_consecutive_frames_suitable_for_gpu_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(LayerTreeHostInProcess);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_LAYER_TREE_HOST_IN_PROCESS_H_