Request video element to enter fullscreen when playing protected content

content/renderer/media/android/webmediaplayer_proxy_android.cc

Index: content/renderer/media/android/webmediaplayer_proxy_android.cc
diff --git a/content/renderer/media/android/webmediaplayer_proxy_android.cc b/content/renderer/media/android/webmediaplayer_proxy_android.cc
index f5137cb7efb7c5c58b1582b2cd0fcd2aad999834..5d402e46c345b1dea98702ae58b76206cd94ab1c 100644
--- a/content/renderer/media/android/webmediaplayer_proxy_android.cc
+++ b/content/renderer/media/android/webmediaplayer_proxy_android.cc
@@ -43,6 +43,8 @@ bool WebMediaPlayerProxyAndroid::OnMessageReceived(const IPC::Message& msg) {
                         OnConnectedToRemoteDevice)
     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DisconnectedFromRemoteDevice,
                         OnDisconnectedFromRemoteDevice)
+    IPC_MESSAGE_HANDLER(MediaPlayerMsg_RequestFullscreen,
+                        OnRequestFullscreen)
     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DidEnterFullscreen, OnDidEnterFullscreen)
     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DidExitFullscreen, OnDidExitFullscreen)
     IPC_MESSAGE_HANDLER(MediaPlayerMsg_DidMediaPlayerPlay, OnPlayerPlay)
@@ -198,6 +200,12 @@ void WebMediaPlayerProxyAndroid::OnPlayerPause(int player_id) {
     player->OnMediaPlayerPause();
 }
 
+void WebMediaPlayerProxyAndroid::OnRequestFullscreen(int player_id) {
+  WebMediaPlayerAndroid* player = GetWebMediaPlayer(player_id);
+  if (player)
+    player->OnRequestFullscreen();
+}
+
 void WebMediaPlayerProxyAndroid::EnterFullscreen(int player_id) {
   Send(new MediaPlayerHostMsg_EnterFullscreen(routing_id(), player_id));
 }