cast: Support for low-latency interactive mode

media/cast/cast_config.h

Index: media/cast/cast_config.h
diff --git a/media/cast/cast_config.h b/media/cast/cast_config.h
index 6e6b283b0fc4bd173faea885bb8c6a246de7eb94..4ebef67ef3bd9e2ee869209a8ffc5c820e4d1d60 100644
--- a/media/cast/cast_config.h
+++ b/media/cast/cast_config.h
@@ -74,6 +74,9 @@ struct AudioSenderConfig {
   base::TimeDelta min_playout_delay;
   base::TimeDelta max_playout_delay;
 
+  // Starting playout delay when streaming animated content.
+  base::TimeDelta animated_playout_delay;
+
   // RTP payload type enum: Specifies the type/encoding of frame data.
   int rtp_payload_type;
 
@@ -109,6 +112,9 @@ struct VideoSenderConfig {
   base::TimeDelta min_playout_delay;
   base::TimeDelta max_playout_delay;
 
+  // Starting playout delay when streaming animated content.
+  base::TimeDelta animated_playout_delay;
+
   // RTP payload type enum: Specifies the type/encoding of frame data.
   int rtp_payload_type;