Update from https://crrev.com/306655

cc/scheduler/scheduler_state_machine.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_STATE_MACHINE_H_
 #define CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 50 matching lines @@
     BEGIN_IMPL_FRAME_STATE_INSIDE_DEADLINE,
   };
   static const char* BeginImplFrameStateToString(BeginImplFrameState state);
 
   enum CommitState {
     COMMIT_STATE_IDLE,
     COMMIT_STATE_BEGIN_MAIN_FRAME_SENT,
     COMMIT_STATE_BEGIN_MAIN_FRAME_STARTED,
     COMMIT_STATE_READY_TO_COMMIT,
     COMMIT_STATE_WAITING_FOR_ACTIVATION,
+    COMMIT_STATE_WAITING_FOR_DRAW,
   };
   static const char* CommitStateToString(CommitState state);
 
   enum ForcedRedrawOnTimeoutState {
     FORCED_REDRAW_STATE_IDLE,
     FORCED_REDRAW_STATE_WAITING_FOR_COMMIT,
     FORCED_REDRAW_STATE_WAITING_FOR_ACTIVATION,
     FORCED_REDRAW_STATE_WAITING_FOR_DRAW,
   };
   static const char* ForcedRedrawOnTimeoutStateToString(
@@ skipping 243 matching lines @@
   bool impl_latency_takes_priority_on_battery_;
   bool children_need_begin_frames_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(SchedulerStateMachine);
 };
 
 }  // namespace cc
 
 #endif  // CC_SCHEDULER_SCHEDULER_STATE_MACHINE_H_