rename AudioSystem::newAudioSessionId()

Rename AudioSystem::newAudioSessionId() to
AudioSystem::newAudioUniqueId() as it can be used
also for I/O handles.

Bug: 12378680.
Change-Id: I611ea3b5eb57a4b0774437f477ee87dc4ccc2cc2
diff --git a/services/audiopolicy/AudioPolicyClientImpl.cpp b/services/audiopolicy/AudioPolicyClientImpl.cpp
index aa309d1..c0019d1 100644
--- a/services/audiopolicy/AudioPolicyClientImpl.cpp
+++ b/services/audiopolicy/AudioPolicyClientImpl.cpp
@@ -212,4 +212,9 @@
     mAudioPolicyService->onAudioPatchListUpdate();
 }
 
+audio_unique_id_t AudioPolicyService::AudioPolicyClient::newAudioUniqueId()
+{
+    return AudioSystem::newAudioUniqueId();
+}
+
 }; // namespace android
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index 0e53afc..749350a 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -287,6 +287,8 @@
     virtual void onAudioPortListUpdate() = 0;
 
     virtual void onAudioPatchListUpdate() = 0;
+
+    virtual audio_unique_id_t newAudioUniqueId() = 0;
 };
 
 extern "C" AudioPolicyInterface* createAudioPolicyManager(AudioPolicyClientInterface *clientInterface);
diff --git a/services/audiopolicy/AudioPolicyService.h b/services/audiopolicy/AudioPolicyService.h
index 63fc0c3..3769aab 100644
--- a/services/audiopolicy/AudioPolicyService.h
+++ b/services/audiopolicy/AudioPolicyService.h
@@ -437,6 +437,8 @@
         virtual void onAudioPortListUpdate();
         virtual void onAudioPatchListUpdate();
 
+        virtual audio_unique_id_t newAudioUniqueId();
+
      private:
         AudioPolicyService *mAudioPolicyService;
     };