Remove runtime toggling of throttling frames

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 64 matching lines @@
 
   void CommitVSyncParameters(base::TimeTicks timebase,
                              base::TimeDelta interval);
   void SetEstimatedParentDrawTime(base::TimeDelta draw_time);
 
   void SetVisible(bool visible);
   bool visible() { return state_machine_.visible(); }
   void SetCanDraw(bool can_draw);
   void NotifyReadyToActivate();
   void NotifyReadyToDraw();
-  void SetThrottleFrameProduction(bool throttle);
 
   void SetNeedsBeginMainFrame();
   // Requests a single impl frame (after the current frame if there is one
   // active).
   void SetNeedsOneBeginImplFrame();
 
   void SetNeedsRedraw();
 
   void SetNeedsPrepareTiles();
 
@@ skipping 65 matching lines @@
   const SchedulerSettings settings_;
   SchedulerClient* client_;
   int layer_tree_host_id_;
   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 observing_frame_source_;
-  bool throttle_frame_production_;
 
   base::TimeDelta authoritative_vsync_interval_;
   base::TimeTicks last_vsync_timebase_;
 
   scoped_ptr<CompositorTimingHistory> compositor_timing_history_;
   base::TimeDelta estimated_parent_draw_time_;
 
   std::deque<BeginFrameArgs> begin_retro_frame_args_;
   SchedulerStateMachine::BeginImplFrameDeadlineMode
       begin_impl_frame_deadline_mode_;
@@ skipping 53 matching lines @@
   }
 
   base::WeakPtrFactory<Scheduler> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(Scheduler);
 };
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_SCHEDULER_H_