EME: Handle NO_KEY and resume playback after key is added.

media/base/android/media_player_android.h

 // Copyright (c) 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_
 #define MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_
 
 #include <jni.h>
 #include <string>
 
@@ skipping 84 matching lines @@
 
   // Called when a seek request is acked by the render process.
   virtual void OnSeekRequestAck(unsigned seek_request_id);
 
   // Called when the demuxer has changed the duration.
   virtual void DurationChanged(const base::TimeDelta& duration);
 
   // Pass a drm bridge to a player.
   virtual void SetDrmBridge(MediaDrmBridge* drm_bridge);
 
+  // Notifies the player that a decryption key has been added. The player
+  // may want to start/resume playback if it is waiting for a key.
+  virtual void OnKeyAdded();
+
   int player_id() { return player_id_; }
 
  protected:
   MediaPlayerAndroid(int player_id,
                      MediaPlayerManager* manager);
 
   // Called when player status changes.
   virtual void OnMediaError(int error_type);
   virtual void OnVideoSizeChanged(int width, int height);
   virtual void OnBufferingUpdate(int percent);
@@ skipping 16 matching lines @@
 
   // Resource manager for all the media players.
   MediaPlayerManager* manager_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPlayerAndroid);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_ANDROID_MEDIA_PLAYER_ANDROID_H_