Add the SetMediaKeys handler to pass a drm bridge to a MediaSourcePlayer

media/base/android/media_player_android.cc

Index: media/base/android/media_player_android.cc
diff --git a/media/base/android/media_player_android.cc b/media/base/android/media_player_android.cc
index a435d5dd7a5d56ff281d9ced227f5adab4dad184..8d8988c5c12556a21590d52702d04294f2be2fc6 100644
--- a/media/base/android/media_player_android.cc
+++ b/media/base/android/media_player_android.cc
@@ -5,6 +5,7 @@
 #include "media/base/android/media_player_android.h"
 
 #include "base/logging.h"
+#include "media/base/android/media_drm_bridge.h"
 #include "media/base/android/media_player_manager.h"
 
 namespace media {
@@ -88,4 +89,8 @@ GURL MediaPlayerAndroid::GetFirstPartyForCookies() {
   return GURL();
 }
 
+void MediaPlayerAndroid::SetDrmBridge(MediaDrmBridge* drm_bridge) {
+  NOTREACHED() << "Unexpected SetDrmBridge() call";
+}
+
 }  // namespace media