Cast:Adding signaling and infrastructure for adjustable delay

media/cast/audio_receiver/audio_receiver.h

Index: media/cast/audio_receiver/audio_receiver.h
diff --git a/media/cast/audio_receiver/audio_receiver.h b/media/cast/audio_receiver/audio_receiver.h
index b2abfc2f4b04d86c10f8b309234b6370a0aa513f..2742399f33a8a4b5a2ed64da63d412663b09465d 100644
--- a/media/cast/audio_receiver/audio_receiver.h
+++ b/media/cast/audio_receiver/audio_receiver.h
@@ -53,7 +53,8 @@ class AudioReceiver : public base::NonThreadSafe,
 
   // Extract a raw audio frame from the cast receiver.
   // Actual decoding will be preformed on a designated audio_decoder thread.
-  void GetRawAudioFrame(int number_of_10ms_blocks, int desired_frequency,
+  void GetRawAudioFrame(int number_of_10ms_blocks,
+                        int desired_frequency,
                         const AudioFrameDecodedCallback& callback);
 
   // Extract an encoded audio frame from the cast receiver.
@@ -62,8 +63,13 @@ class AudioReceiver : public base::NonThreadSafe,
   // Should only be called from the main cast thread.
   void IncomingPacket(scoped_ptr<Packet> packet);
 
+  // Update target audio delay used to compute the playout time. Rtcp
+  // will also be updated (will be included in all outgoing reports).
+  void SetTargetDelay(base::TimeDelta target_delay);
+
  protected:
-  void IncomingParsedRtpPacket(const uint8* payload_data, size_t payload_size,
+  void IncomingParsedRtpPacket(const uint8* payload_data,
+                               size_t payload_size,
                                const RtpCastHeader& rtp_header);
 
  private:
@@ -82,10 +88,12 @@ class AudioReceiver : public base::NonThreadSafe,
 
   // Actual decoding implementation - should be called under the audio decoder
   // thread.
-  void DecodeAudioFrameThread(int number_of_10ms_blocks, int desired_frequency,
+  void DecodeAudioFrameThread(int number_of_10ms_blocks,
+                              int desired_frequency,
                               const AudioFrameDecodedCallback callback);
   void ReturnDecodedFrameWithPlayoutDelay(
-      scoped_ptr<PcmAudioFrame> audio_frame, uint32 rtp_timestamp,
+      scoped_ptr<PcmAudioFrame> audio_frame,
+      uint32 rtp_timestamp,
       const AudioFrameDecodedCallback callback);
 
   // Return the playout time based on the current time and rtp timestamp.