Support audio output device enumeration and selection in PPAPI

ppapi/proxy/resource_creation_proxy.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_
 #define PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_
 
 #include <stdint.h>
 
 #include <string>
@@ skipping 145 matching lines @@
   PP_Resource CreateUDPSocketPrivate(PP_Instance instance) override;
   PP_Resource CreateVideoDecoder(PP_Instance instance) override;
   PP_Resource CreateVideoDestination(PP_Instance instance) override;
   PP_Resource CreateVideoEncoder(PP_Instance instance) override;
   PP_Resource CreateVideoSource(PP_Instance instance) override;
   PP_Resource CreateVpnProvider(PP_Instance instance) override;
   PP_Resource CreateWebSocket(PP_Instance instance) override;
   PP_Resource CreateX509CertificatePrivate(PP_Instance instance) override;
 #if !defined(OS_NACL)
   PP_Resource CreateAudioInput(PP_Instance instance) override;
+  PP_Resource CreateAudioOutput(PP_Instance instance) override;
   PP_Resource CreateBroker(PP_Instance instance) override;
   PP_Resource CreateBrowserFont(
       PP_Instance instance,
       const PP_BrowserFont_Trusted_Description* description) override;
   PP_Resource CreateBuffer(PP_Instance instance, uint32_t size) override;
   PP_Resource CreateFlashDRM(PP_Instance instance) override;
   PP_Resource CreateFlashFontFile(
       PP_Instance instance,
       const PP_BrowserFont_Trusted_Description* description,
       PP_PrivateFontCharset charset) override;
@@ skipping 13 matching lines @@
 
  private:
   Connection GetConnection();
   DISALLOW_COPY_AND_ASSIGN(ResourceCreationProxy);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_RESOURCE_CREATION_PROXY_H_