Support CAST+WMPI on android

content/renderer/render_frame_impl.cc

Index: content/renderer/render_frame_impl.cc
diff --git a/content/renderer/render_frame_impl.cc b/content/renderer/render_frame_impl.cc
index 9ea32c42984c04e9f13f96ab843861983d9c65d7..fa4f06221949159b315c42486df0eed33ee73c50 100644
--- a/content/renderer/render_frame_impl.cc
+++ b/content/renderer/render_frame_impl.cc
@@ -2387,9 +2387,13 @@ blink::WebMediaPlayer* RenderFrameImpl::createMediaPlayer(
   if (!url_index_.get() || url_index_->frame() != frame)
     url_index_.reset(new media::UrlIndex(frame));
 
-  return new media::WebMediaPlayerImpl(
+  media::WebMediaPlayerImpl* media_player = new media::WebMediaPlayerImpl(
       frame, client, encrypted_client, GetWebMediaPlayerDelegate()->AsWeakPtr(),
       std::move(media_renderer_factory), GetCdmFactory(), url_index_, params);
+#if defined(OS_ANDROID)  // WMPI_CAST
+  media_player->set_media_player_manager(GetMediaPlayerManager());
+#endif
+  return media_player;
 }
 
 blink::WebMediaSession* RenderFrameImpl::createMediaSession() {