Update from https://crrev.com/311076

cc/output/begin_frame_args.h

 // Copyright 2013 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_OUTPUT_BEGIN_FRAME_ARGS_H_
 #define CC_OUTPUT_BEGIN_FRAME_ARGS_H_
 
 #include "base/location.h"
 #include "base/memory/ref_counted.h"
 #include "base/time/time.h"
@@ skipping 57 matching lines @@
                                BeginFrameArgsType type);
 
   // This is the default delta that will be used to adjust the deadline when
   // proper draw-time estimations are not yet available.
   static base::TimeDelta DefaultEstimatedParentDrawTime();
 
   // This is the default interval to use to avoid sprinkling the code with
   // magic numbers.
   static base::TimeDelta DefaultInterval();
 
-  // This is the default amount of time after the frame_time to retroactively
-  // send a BeginFrame that had been skipped. This only has an effect if the
-  // deadline has passed, since the deadline is also used to trigger BeginFrame
-  // retroactively.
-  static base::TimeDelta DefaultRetroactiveBeginFramePeriod();
-
   bool IsValid() const { return interval >= base::TimeDelta(); }
 
   scoped_refptr<base::debug::ConvertableToTraceFormat> AsValue() const;
   void AsValueInto(base::debug::TracedValue* dict) const;
 
   base::TimeTicks frame_time;
   base::TimeTicks deadline;
   base::TimeDelta interval;
   BeginFrameArgsType type;
 
  private:
   BeginFrameArgs(base::TimeTicks frame_time,
                  base::TimeTicks deadline,
                  base::TimeDelta interval,
                  BeginFrameArgsType type);
 };
 
 }  // namespace cc
 
 #endif  // CC_OUTPUT_BEGIN_FRAME_ARGS_H_