audio policy: add audio_input_flags_t and mOpenRefCount

Change-Id: I5f9c7b5ebf03b9bc94efe70d3677edfabb99c194
diff --git a/services/audiopolicy/AudioPolicyInterface.h b/services/audiopolicy/AudioPolicyInterface.h
index ed66e58..d45776b 100644
--- a/services/audiopolicy/AudioPolicyInterface.h
+++ b/services/audiopolicy/AudioPolicyInterface.h
@@ -112,7 +112,8 @@
                                     uint32_t samplingRate,
                                     audio_format_t format,
                                     audio_channel_mask_t channelMask,
-                                    audio_in_acoustics_t acoustics) = 0;
+                                    audio_in_acoustics_t acoustics,
+                                    audio_input_flags_t flags) = 0;
     // indicates to the audio policy manager that the input starts being used.
     virtual status_t startInput(audio_io_handle_t input) = 0;
     // indicates to the audio policy manager that the input stops being used.