Support audio output device enumeration and selection in PPAPI

ppapi/proxy/resource_creation_proxy.cc

Index: ppapi/proxy/resource_creation_proxy.cc
diff --git a/ppapi/proxy/resource_creation_proxy.cc b/ppapi/proxy/resource_creation_proxy.cc
index 1c79bc5cf621b2edd8f90d552207a0db1863840e..0e414285882a65e7dfbfd8642d97c705f5602afd 100644
--- a/ppapi/proxy/resource_creation_proxy.cc
+++ b/ppapi/proxy/resource_creation_proxy.cc
@@ -9,6 +9,7 @@
 #include "ppapi/c/pp_size.h"
 #include "ppapi/proxy/audio_encoder_resource.h"
 #include "ppapi/proxy/audio_input_resource.h"
+#include "ppapi/proxy/audio_output_resource.h"
 #include "ppapi/proxy/camera_device_resource.h"
 #include "ppapi/proxy/compositor_resource.h"
 #include "ppapi/proxy/connection.h"
@@ -429,6 +430,10 @@ PP_Resource ResourceCreationProxy::CreateAudioInput(
   return (new AudioInputResource(GetConnection(), instance))->GetReference();
 }
 
+PP_Resource ResourceCreationProxy::CreateAudioOutput(PP_Instance instance) {
+  return (new AudioOutputResource(GetConnection(), instance))->GetReference();
+}
+
 PP_Resource ResourceCreationProxy::CreateBroker(PP_Instance instance) {
   return PPB_Broker_Proxy::CreateProxyResource(instance);
 }