Remove external begin frame source parameter and settings

cc/trees/threaded_channel.h

 // Copyright 2015 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_THREADED_CHANNEL_H_
 #define CC_TREES_THREADED_CHANNEL_H_
 
 #include <memory>
 
 #include "base/macros.h"
@@ skipping 94 matching lines @@
   // Blocking calls to ProxyImpl
   void ReleaseCompositorFrameSinkOnImpl(CompletionEvent* completion) override;
   void MainFrameWillHappenOnImplForTesting(
       CompletionEvent* completion,
       bool* main_frame_will_happen) override;
   void NotifyReadyToCommitOnImpl(CompletionEvent* completion,
                                  LayerTreeHostInProcess* layer_tree_host,
                                  base::TimeTicks main_thread_start_time,
                                  bool hold_commit_for_activation) override;
   void SynchronouslyInitializeImpl(
-      LayerTreeHostInProcess* layer_tree_host,
-      std::unique_ptr<BeginFrameSource> external_begin_frame_source) override;
+      LayerTreeHostInProcess* layer_tree_host) override;
   void SynchronouslyCloseImpl() override;
 
   // ChannelImpl Implementation
   void DidCompleteSwapBuffers() override;
   void BeginMainFrameNotExpectedSoon() override;
   void DidCommitAndDrawFrame() override;
   void SetAnimationEvents(std::unique_ptr<AnimationEvents> events) override;
   void DidLoseCompositorFrameSink() override;
   void RequestNewCompositorFrameSink() override;
   void DidInitializeCompositorFrameSink(bool success) override;
   void DidCompletePageScaleAnimation() override;
   void BeginMainFrame(std::unique_ptr<BeginMainFrameAndCommitState>
                           begin_main_frame_state) override;
 
  protected:
   ThreadedChannel(ProxyMain* proxy_main,
                   TaskRunnerProvider* task_runner_provider);
 
   // Virtual for testing.
   virtual std::unique_ptr<ProxyImpl> CreateProxyImpl(
       ChannelImpl* channel_impl,
       LayerTreeHostInProcess* layer_tree_host,
-      TaskRunnerProvider* task_runner_provider,
-      std::unique_ptr<BeginFrameSource> external_begin_frame_source);
+      TaskRunnerProvider* task_runner_provider);
 
  private:
   // The members of this struct should be accessed on the main thread only.
   struct MainThreadOnly {
     explicit MainThreadOnly(ProxyMain* proxy_main);
     ~MainThreadOnly();
 
     base::WeakPtrFactory<ProxyMain> proxy_main_weak_factory;
     bool initialized;
   };
@@ skipping 15 matching lines @@
 
     // Used on the impl thread to queue calls to ProxyMain to be run on the main
     // thread. Since the weak pointer is invalidated after the impl-thread tear
     // down in SynchronouslyCloseImpl, this ensures that any tasks posted to
     // ProxyMain from the impl thread are abandoned after the impl side has been
     // destroyed.
     base::WeakPtr<ProxyMain> proxy_main_weak_ptr;
   };
 
   // Called on impl thread.
-  void InitializeImplOnImpl(
-      CompletionEvent* completion,
-      LayerTreeHostInProcess* layer_tree_host,
-      std::unique_ptr<BeginFrameSource> external_begin_frame_source);
+  void InitializeImplOnImpl(CompletionEvent* completion,
+                            LayerTreeHostInProcess* layer_tree_host);
   void CloseImplOnImpl(CompletionEvent* completion);
 
   bool IsInitialized() const;
 
   base::SingleThreadTaskRunner* MainThreadTaskRunner() const;
   base::SingleThreadTaskRunner* ImplThreadTaskRunner() const;
   bool IsMainThread() const;
   bool IsImplThread() const;
 
   TaskRunnerProvider* task_runner_provider_;
@@ skipping 13 matching lines @@
   // Used on the main thread to safely queue calls to ProxyImpl to be run on the
   // impl thread.
   base::WeakPtr<ProxyImpl> proxy_impl_weak_ptr_;
 
   DISALLOW_COPY_AND_ASSIGN(ThreadedChannel);
 };
 
 }  // namespace cc
 
 #endif  // CC_TREES_THREADED_CHANNEL_H_