Cast:Adding cast_transport_config and cleaning up

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 <map>
 #include <set>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/time/time.h"
 
 namespace media {
 namespace cast {
 
 const int64 kDontShowTimeoutMs = 33;
 const float kDefaultCongestionControlBackOff = 0.875f;
 const uint32 kVideoFrequency = 90000;
 const int64 kSkippedFramesCheckPeriodkMs = 10000;
 const uint32 kStartFrameId = GG_UINT32_C(0xffffffff);
 
 // Number of skipped frames threshold in fps (as configured) per period above.
 const int kSkippedFramesThreshold = 3;
-const size_t kIpPacketSize = 1500;
+const size_t kMaxIpPacketSize = 1500;
 const int kStartRttMs = 20;
 const int64 kCastMessageUpdateIntervalMs = 33;
 const int64 kNackRepeatIntervalMs = 30;
 
 enum DefaultSettings {
   kDefaultAudioEncoderBitrate = 0,  // This means "auto," and may mean VBR.
   kDefaultAudioSamplingRate = 48000,
   kDefaultMaxQp = 56,
   kDefaultMinQp = 4,
   kDefaultMaxFrameRate = 30,
@@ skipping 122 matching lines @@
   base::TimeTicks zero_time;
   base::TimeDelta recorded_delta = time_ticks - zero_time;
   // Timestamp is in 90 KHz for video.
   return static_cast<uint32>(recorded_delta.InMilliseconds() * 90);
 }
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_CAST_DEFINES_H_