Cast: First stab at implementing adaptive latency

media/cast/cast_sender_impl.cc

Index: media/cast/cast_sender_impl.cc
diff --git a/media/cast/cast_sender_impl.cc b/media/cast/cast_sender_impl.cc
index f617ef4429c5d52c2e564b9df3ff5ec9b7b345b5..f3e84244ad6a2784daf99a4a0fa06c493fb7aa7c 100644
--- a/media/cast/cast_sender_impl.cc
+++ b/media/cast/cast_sender_impl.cc
@@ -127,11 +127,14 @@ void CastSenderImpl::InitializeVideo(
 
   VLOG(1) << "CastSenderImpl@" << this << "::InitializeVideo()";
 
-  video_sender_.reset(new VideoSender(cast_environment_,
-                                      video_config,
-                                      create_vea_cb,
-                                      create_video_encode_mem_cb,
-                                      transport_sender_));
+  video_sender_.reset(
+      new VideoSender(cast_environment_,
+                      video_config,
+                      create_vea_cb,
+                      create_video_encode_mem_cb,
+                      transport_sender_,
+                      base::Bind(&CastSenderImpl::SetTargetPlayoutDelay,
+                                 weak_factory_.GetWeakPtr())));
 
   const CastInitializationStatus status = video_sender_->InitializationResult();
   if (status == STATUS_VIDEO_INITIALIZED) {