[Cast] RTT clean-up to the max!

media/cast/cast_defines.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 MEDIA_CAST_CAST_DEFINES_H_
 #define MEDIA_CAST_CAST_DEFINES_H_
 
 #include <stdint.h>
 
 #include <map>
@@ skipping 14 matching lines @@
 const uint32 kStartFrameId = UINT32_C(0xffffffff);
 
 // This is an important system-wide constant.  This limits how much history the
 // implementation must retain in order to process the acknowledgements of past
 // frames.
 // This value is carefully choosen such that it fits in the 8-bits range for
 // frame IDs. It is also less than half of the full 8-bits range such that we
 // can handle wrap around and compare two frame IDs.
 const int kMaxUnackedFrames = 120;
 
-const int kStartRttMs = 20;
 const int64 kCastMessageUpdateIntervalMs = 33;
 const int64 kNackRepeatIntervalMs = 30;
 
 enum CastInitializationStatus {
   STATUS_AUDIO_UNINITIALIZED,
   STATUS_VIDEO_UNINITIALIZED,
   STATUS_AUDIO_INITIALIZED,
   STATUS_VIDEO_INITIALIZED,
   STATUS_INVALID_CAST_ENVIRONMENT,
   STATUS_INVALID_CRYPTO_CONFIGURATION,
@@ skipping 151 matching lines @@
 
 inline int64 TimeDeltaToRtpDelta(base::TimeDelta delta, int rtp_timebase) {
   DCHECK_GT(rtp_timebase, 0);
   return delta * rtp_timebase / base::TimeDelta::FromSeconds(1);
 }
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_CAST_DEFINES_H_