Add use for audio_unique_id_t

Bug: 25641253
Bug: 21019153
Change-Id: I65dc128e760c245f3d90559635a8981b186c87d7
diff --git a/media/libmedia/AudioTrack.cpp b/media/libmedia/AudioTrack.cpp
index f0074b6..36c1d10 100644
--- a/media/libmedia/AudioTrack.cpp
+++ b/media/libmedia/AudioTrack.cpp
@@ -438,7 +438,7 @@
     mNotificationFramesReq = notificationFrames;
     mNotificationFramesAct = 0;
     if (sessionId == AUDIO_SESSION_ALLOCATE) {
-        mSessionId = AudioSystem::newAudioUniqueId();
+        mSessionId = AudioSystem::newAudioUniqueId(AUDIO_UNIQUE_ID_USE_SESSION);
     } else {
         mSessionId = sessionId;
     }