cast: Support for low-latency interactive mode

chrome/renderer/media/cast_rtp_stream.cc

Index: chrome/renderer/media/cast_rtp_stream.cc
diff --git a/chrome/renderer/media/cast_rtp_stream.cc b/chrome/renderer/media/cast_rtp_stream.cc
index 8b2b84b9e29079787fcc44c073cf36b18c862a6e..523bf57df4744c42427e34c9ce297c663078f1e1 100644
--- a/chrome/renderer/media/cast_rtp_stream.cc
+++ b/chrome/renderer/media/cast_rtp_stream.cc
@@ -171,10 +171,15 @@ bool ToAudioSenderConfig(const CastRtpParams& params,
                                   params.payload.max_latency_ms);
   config->max_playout_delay =
       base::TimeDelta::FromMilliseconds(params.payload.max_latency_ms);
+  config->animated_playout_delay =
+      base::TimeDelta::FromMilliseconds(params.payload.animated_latency_ms);
   if (config->min_playout_delay <= base::TimeDelta())
     return false;
   if (config->min_playout_delay > config->max_playout_delay)
     return false;
+  if (config->animated_playout_delay < config->min_playout_delay ||
+      config->animated_playout_delay > config->max_playout_delay)
+    return false;
   config->rtp_payload_type = params.payload.payload_type;
   config->use_external_encoder = false;
   config->frequency = params.payload.clock_rate;
@@ -214,10 +219,15 @@ bool ToVideoSenderConfig(const CastRtpParams& params,
                                   params.payload.max_latency_ms);
   config->max_playout_delay =
       base::TimeDelta::FromMilliseconds(params.payload.max_latency_ms);
+  config->animated_playout_delay =
+      base::TimeDelta::FromMilliseconds(params.payload.animated_latency_ms);
   if (config->min_playout_delay <= base::TimeDelta())
     return false;
   if (config->min_playout_delay > config->max_playout_delay)
     return false;
+  if (config->animated_playout_delay < config->min_playout_delay ||
+      config->animated_playout_delay > config->max_playout_delay)
+    return false;
   config->rtp_payload_type = params.payload.payload_type;
   config->min_bitrate = config->start_bitrate =
       params.payload.min_bitrate * kBitrateMultiplier;