Charge network traffic to the uid of the process using the MediaPlayer.

Change-Id: I2bcb54b8232afd3fc7ee16289f37c7a7b3f23067
related-to-bug: 4517282
diff --git a/media/libmediaplayerservice/nuplayer/NuPlayer.h b/media/libmediaplayerservice/nuplayer/NuPlayer.h
index fb5b001..cf9185b 100644
--- a/media/libmediaplayerservice/nuplayer/NuPlayer.h
+++ b/media/libmediaplayerservice/nuplayer/NuPlayer.h
@@ -33,6 +33,8 @@
 struct NuPlayer : public AHandler {
     NuPlayer();
 
+    void setUID(uid_t uid);
+
     void setDriver(const wp<NuPlayerDriver> &driver);
 
     void setDataSource(const sp<IStreamSource> &source);
@@ -84,6 +86,8 @@
     };
 
     wp<NuPlayerDriver> mDriver;
+    bool mUIDValid;
+    uid_t mUID;
     sp<Source> mSource;
     sp<NativeWindowWrapper> mNativeWindow;
     sp<MediaPlayerBase::AudioSink> mAudioSink;