diff --git a/include/media/AudioSystem.h b/include/media/AudioSystem.h
index e3f2d60..901a0fd 100644
--- a/include/media/AudioSystem.h
+++ b/include/media/AudioSystem.h
@@ -150,9 +150,9 @@
     // Allocate a new unique ID for use as an audio session ID or I/O handle.
     // If unable to contact AudioFlinger, returns AUDIO_UNIQUE_ID_ALLOCATE instead.
     // FIXME If AudioFlinger were to ever exhaust the unique ID namespace,
-    //       this method could fail by returning either AUDIO_UNIQUE_ID_ALLOCATE
+    //       this method could fail by returning either a reserved ID like AUDIO_UNIQUE_ID_ALLOCATE
     //       or an unspecified existing unique ID.
-    static audio_unique_id_t newAudioUniqueId();
+    static audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use);
 
     static void acquireAudioSessionId(int audioSession, pid_t pid);
     static void releaseAudioSessionId(int audioSession, pid_t pid);
diff --git a/include/media/IAudioFlinger.h b/include/media/IAudioFlinger.h
index 3b69ecf..e28f79d 100644
--- a/include/media/IAudioFlinger.h
+++ b/include/media/IAudioFlinger.h
@@ -182,7 +182,7 @@
 
     virtual uint32_t getInputFramesLost(audio_io_handle_t ioHandle) const = 0;
 
-    virtual audio_unique_id_t newAudioUniqueId() = 0;
+    virtual audio_unique_id_t newAudioUniqueId(audio_unique_id_use_t use) = 0;
 
     virtual void acquireAudioSessionId(int audioSession, pid_t pid) = 0;
     virtual void releaseAudioSessionId(int audioSession, pid_t pid) = 0;