cc: Remove unnecessary task runner refptrs from schedulers.

cc/scheduler/scheduler.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_SCHEDULER_SCHEDULER_H_
 #define CC_SCHEDULER_SCHEDULER_H_
 
 #include <deque>
 #include <string>
 
@@ skipping 41 matching lines @@
  protected:
   virtual ~SchedulerClient() {}
 };
 
 class CC_EXPORT Scheduler : public BeginFrameObserverBase {
  public:
   static scoped_ptr<Scheduler> Create(
       SchedulerClient* client,
       const SchedulerSettings& scheduler_settings,
       int layer_tree_host_id,
-      const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+      base::SingleThreadTaskRunner* task_runner,
       BeginFrameSource* external_frame_source);
 
   ~Scheduler() override;
 
   // BeginFrameObserverBase
   bool OnBeginFrameDerivedImpl(const BeginFrameArgs& args) override;
 
   void OnDrawForOutputSurface();
 
   const SchedulerSettings& settings() const { return settings_; }
@@ skipping 70 matching lines @@
 
   void SetChildrenNeedBeginFrames(bool children_need_begin_frames);
   void SetVideoNeedsBeginFrames(bool video_needs_begin_frames);
 
   void SetAuthoritativeVSyncInterval(const base::TimeDelta& interval);
 
  protected:
   Scheduler(SchedulerClient* client,
             const SchedulerSettings& scheduler_settings,
             int layer_tree_host_id,
-            const scoped_refptr<base::SingleThreadTaskRunner>& task_runner,
+            base::SingleThreadTaskRunner* task_runner,
             BeginFrameSource* external_frame_source,
             scoped_ptr<SyntheticBeginFrameSource> synthetic_frame_source,
             scoped_ptr<BackToBackBeginFrameSource> unthrottled_frame_source);
 
   // virtual for testing - Don't call these in the constructor or
   // destructor!
   virtual base::TimeTicks Now() const;
 
   const SchedulerSettings settings_;
   SchedulerClient* client_;
   int layer_tree_host_id_;
-  scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
+  base::SingleThreadTaskRunner* task_runner_;
   BeginFrameSource* external_frame_source_;
   scoped_ptr<SyntheticBeginFrameSource> synthetic_frame_source_;
   scoped_ptr<BackToBackBeginFrameSource> unthrottled_frame_source_;
 
   scoped_ptr<BeginFrameSourceMultiplexer> frame_source_;
   bool throttle_frame_production_;
 
   base::TimeDelta authoritative_vsync_interval_;
   base::TimeTicks last_vsync_timebase_;
 
@@ skipping 48 matching lines @@
   }
 
   base::WeakPtrFactory<Scheduler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Scheduler);
 };
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_SCHEDULER_H_