Merge pull request #6678 from Dhilan007/v3

fixed compile fail on android.

cocos/2d/platform/android/java/src/org/cocos2dx/lib/Cocos2dxVideoView.java

@@ -683,9 +683,8 @@ public class Cocos2dxVideoView extends SurfaceView implements MediaPlayerControl
 		return true;
 	}
     	
-    @Override
     public int getAudioSessionId () {
        // TODO Auto-generated method stub
-       return 0;
+       return mMediaPlayer.getAudioSessionId();
     }
 }