Add setMasterMono and getMasterMono

Bug: 15283594
Bug: 22700363
Change-Id: I32dc1fcecf285967a61bd508af3bb299595db57d
diff --git a/services/audiopolicy/service/AudioPolicyService.h b/services/audiopolicy/service/AudioPolicyService.h
index a0d5aa2..d1ac5d8 100644
--- a/services/audiopolicy/service/AudioPolicyService.h
+++ b/services/audiopolicy/service/AudioPolicyService.h
@@ -202,6 +202,9 @@
                                       audio_io_handle_t *handle);
     virtual status_t stopAudioSource(audio_io_handle_t handle);
 
+    virtual status_t setMasterMono(bool mono);
+    virtual status_t getMasterMono(bool *mono);
+
             status_t doStopOutput(audio_io_handle_t output,
                                   audio_stream_type_t stream,
                                   audio_session_t session);