Implement media cast buttons

Source/web/WebMediaPlayerClientImpl.cpp

Index: Source/web/WebMediaPlayerClientImpl.cpp
diff --git a/Source/web/WebMediaPlayerClientImpl.cpp b/Source/web/WebMediaPlayerClientImpl.cpp
index ec216bdf3ce2b1cf30ed9fcb00ac69958e183ab6..8b038fe8c4d771b01796190f13c6daec5f350f9b 100644
--- a/Source/web/WebMediaPlayerClientImpl.cpp
+++ b/Source/web/WebMediaPlayerClientImpl.cpp
@@ -192,6 +192,21 @@ void WebMediaPlayerClientImpl::requestSeek(double time)
     m_client->mediaPlayerRequestSeek(time);
 }
 
+void WebMediaPlayerClientImpl::remoteRouteAvailabilityChanged(bool routesAvailable)
+{
+    m_client->mediaPlayerRemoteRouteAvailabilityChanged(routesAvailable);
+}
+
+void WebMediaPlayerClientImpl::connectedToRemoteDevice()
+{
+    m_client->mediaPlayerConnectedToRemoteDevice();
+}
+
+void WebMediaPlayerClientImpl::disconnectedFromRemoteDevice()
+{
+    m_client->mediaPlayerDisconnectedFromRemoteDevice();
+}
+
 // MediaPlayer -------------------------------------------------
 void WebMediaPlayerClientImpl::load(WebMediaPlayer::LoadType loadType, const WTF::String& url, WebMediaPlayer::CORSMode corsMode)
 {
@@ -221,6 +236,17 @@ void WebMediaPlayerClientImpl::load(WebMediaPlayer::LoadType loadType, const WTF
     m_webMediaPlayer->load(loadType, kurl, corsMode);
 }
 
+void WebMediaPlayerClientImpl::requestRemotePlayback()
+{
+    if (m_webMediaPlayer)
+        m_webMediaPlayer->requestRemotePlayback();
+}
+
+void WebMediaPlayerClientImpl::requestRemotePlaybackControl()
+{
+    if (m_webMediaPlayer)
+        m_webMediaPlayer->requestRemotePlaybackControl();
+}
 void WebMediaPlayerClientImpl::setPreload(MediaPlayer::Preload preload)
 {
     m_preload = preload;