Pace outgoing frames in frame scheduler to match target bitrate.

remoting/test/leaky_bucket.h

-// Copyright 2014 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 REMOTING_TEST_LEAKY_BUCKET_H_
-#define REMOTING_TEST_LEAKY_BUCKET_H_
-
-#include "base/macros.h"
-#include "base/time/time.h"
-
-namespace remoting {
-
-class LeakyBucket {
- public:
-  // |depth| is in bytes. |rate| is specified in bytes/second.
-  LeakyBucket(double depth, double rate);
-  ~LeakyBucket();
-
-  // Adds a packet of the given |size| to the bucket and returns packet delay.
-  // Returns TimeDelta::Max() if the packet overflows the bucket, in which case
-  // it should be dropped.
-  base::TimeDelta AddPacket(int size);
-
- private:
-  void UpdateLevel();
-
-  double depth_;
-  double rate_;
-
-  double level_;
-  base::TimeTicks last_update_;
-
-  DISALLOW_COPY_AND_ASSIGN(LeakyBucket);
-};
-
-}  // namespace remoting
-
-#endif  // REMOTING_TEST_LEAKY_BUCKET_H_