MediaPlayer: add ANativeWindow (dis)connect calls

This change makes MediaPlayer connect to the ANativeWindow to which it
is going to render video frames and disconnect when it is done.

Change-Id: I88ab5c2fe62493aabdc84a283ff31634f795d415
diff --git a/include/media/mediaplayer.h b/include/media/mediaplayer.h
index ea5a9d3..1136f6c 100644
--- a/include/media/mediaplayer.h
+++ b/include/media/mediaplayer.h
@@ -25,6 +25,8 @@
 #include <utils/KeyedVector.h>
 #include <utils/String8.h>
 
+class ANativeWindow;
+
 namespace android {
 
 class Surface;
@@ -196,6 +198,8 @@
             status_t        prepareAsync_l();
             status_t        getDuration_l(int *msec);
             status_t        setDataSource(const sp<IMediaPlayer>& player);
+            void            disconnectNativeWindow();
+            status_t        reset_l();
 
     sp<IMediaPlayer>            mPlayer;
     thread_id_t                 mLockThreadId;
@@ -218,6 +222,8 @@
     int                         mVideoHeight;
     int                         mAudioSessionId;
     float                       mSendLevel;
+    sp<ANativeWindow>           mConnectedWindow;
+    sp<IBinder>                 mConnectedWindowBinder;
 };
 
 }; // namespace android