MediaPlayer: Use uid_t for uids

Test: Power manager shows correct uids
Bug: 32713790
Change-Id: Iddf8de5705319ec17c68787efc11e342779660c5
diff --git a/media/libmediaplayerservice/MediaPlayerService.h b/media/libmediaplayerservice/MediaPlayerService.h
index ef82b48..ecd0252 100644
--- a/media/libmediaplayerservice/MediaPlayerService.h
+++ b/media/libmediaplayerservice/MediaPlayerService.h
@@ -75,7 +75,7 @@
         class CallbackData;
 
      public:
-                                AudioOutput(audio_session_t sessionId, int uid, int pid,
+                                AudioOutput(audio_session_t sessionId, uid_t uid, int pid,
                                         const audio_attributes_t * attr);
         virtual                 ~AudioOutput();
 
@@ -152,7 +152,7 @@
         float                   mMsecsPerFrame;
         size_t                  mFrameSize;
         audio_session_t         mSessionId;
-        int                     mUid;
+        uid_t                   mUid;
         int                     mPid;
         float                   mSendLevel;
         int                     mAuxEffectId;
@@ -402,7 +402,7 @@
                     int32_t                     mConnId;
                     audio_session_t             mAudioSessionId;
                     audio_attributes_t *        mAudioAttributes;
-                    uid_t                       mUID;
+                    uid_t                       mUid;
                     sp<ANativeWindow>           mConnectedWindow;
                     sp<IBinder>                 mConnectedWindowBinder;
                     struct sockaddr_in          mRetransmitEndpoint;