[Blink,RemotePlayback] Use PresentationController for availability

third_party/WebKit/Source/core/html/HTMLMediaElement.cpp

Index: third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
diff --git a/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp b/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
index b0d3bcc22673b62afac88b67ecbe2808fb572900..42399fdf37d5b19a3efcdc68f0e8caed6214ab35 100644
--- a/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
+++ b/third_party/WebKit/Source/core/html/HTMLMediaElement.cpp
@@ -1132,6 +1132,10 @@ void HTMLMediaElement::LoadResource(const WebMediaPlayerSource& source,
 
   if (audio_source_node_)
     audio_source_node_->OnCurrentSrcChanged(current_src_);
+  if (RuntimeEnabledFeatures::newRemotePlaybackPipelineEnabled() &&
+      RemotePlaybackClient()) {
+    RemotePlaybackClient()->SourceChanged(current_src_);

[mark a. foltz, 2017/05/31 21:16:41]

Is the goal to track the currently playing source or to track all sources listed
in the media element?

+  }
 
   BLINK_MEDIA_LOG << "loadResource(" << (void*)this << ") - current_src_ -> "
                   << UrlForLoggingMedia(current_src_);
@@ -3146,8 +3150,10 @@ void HTMLMediaElement::RequestSeek(double time) {
 
 void HTMLMediaElement::RemoteRouteAvailabilityChanged(
     WebRemotePlaybackAvailability availability) {
-  if (RemotePlaybackClient())
+  if (RemotePlaybackClient() &&
+      !RuntimeEnabledFeatures::newRemotePlaybackPipelineEnabled()) {
     RemotePlaybackClient()->AvailabilityChanged(availability);
+  }
 }
 
 bool HTMLMediaElement::HasRemoteRoutes() const {