Use audio_session_t consistently

Bug: 27562099
Change-Id: I10780c8bfc84af568795a2c15557020fbe89a1c4
diff --git a/btif/src/btif_avrcp_audio_track.cpp b/btif/src/btif_avrcp_audio_track.cpp
index 6716826..89d2a5f 100644
--- a/btif/src/btif_avrcp_audio_track.cpp
+++ b/btif/src/btif_avrcp_audio_track.cpp
@@ -42,8 +42,10 @@
                      __func__, trackFreq, channelType);
     sp<android::AudioTrack> track =
         new android::AudioTrack(AUDIO_STREAM_MUSIC, trackFreq, AUDIO_FORMAT_PCM_16_BIT,
-                                channelType, (int)0, (audio_output_flags_t)AUDIO_OUTPUT_FLAG_FAST,
-                                NULL, NULL, 0, 0, android::AudioTrack::TRANSFER_SYNC);
+                                channelType, (size_t) 0 /*frameCount*/,
+                                (audio_output_flags_t)AUDIO_OUTPUT_FLAG_FAST,
+                                NULL /*callback_t*/, NULL /*void* user*/, 0 /*notificationFrames*/,
+                                AUDIO_SESSION_ALLOCATE, android::AudioTrack::TRANSFER_SYNC);
     assert(track != NULL);
 
     BtifAvrcpAudioTrack *trackHolder = new BtifAvrcpAudioTrack;