Get PPB_Audio interface building as untrusted code.

ppapi/proxy/resource_creation_proxy.cc

 // 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.
 
 #include "ppapi/proxy/resource_creation_proxy.h"
 
 #include "ppapi/c/pp_errors.h"
 #include "ppapi/c/pp_size.h"
 #include "ppapi/c/trusted/ppb_image_data_trusted.h"
 #include "ppapi/proxy/plugin_dispatcher.h"
@@ skipping 154 matching lines @@
   data.event_time_stamp = time_stamp;
   data.event_modifiers = modifiers;
   data.wheel_delta = *wheel_delta;
   data.wheel_ticks = *wheel_ticks;
   data.wheel_scroll_by_page = PP_ToBool(scroll_by_page);
 
   return (new PPB_InputEvent_Shared(OBJECT_IS_PROXY,
                                     instance, data))->GetReference();
 }
 
-#if !defined(OS_NACL)
 PP_Resource ResourceCreationProxy::CreateAudio(
     PP_Instance instance,
     PP_Resource config_id,
     PPB_Audio_Callback audio_callback,
     void* user_data) {
   return PPB_Audio_Proxy::CreateProxyResource(instance, config_id,
                                               audio_callback, user_data);
 }
 
 PP_Resource ResourceCreationProxy::CreateAudioConfig(
     PP_Instance instance,
     PP_AudioSampleRate sample_rate,
     uint32_t sample_frame_count) {
   return PPB_AudioConfig_Shared::Create(
       OBJECT_IS_PROXY, instance, sample_rate, sample_frame_count);
 }
 
+#if !defined(OS_NACL)
 PP_Resource ResourceCreationProxy::CreateAudioTrusted(PP_Instance instance) {
-  // Proxied plugins can't created trusted audio devices.
+  // Proxied plugins can't create trusted audio devices.
   return 0;
 }
 
 PP_Resource ResourceCreationProxy::CreateAudioInput0_1(
     PP_Instance instance,
     PP_Resource config_id,
     PPB_AudioInput_Callback audio_input_callback,
     void* user_data) {
   return PPB_AudioInput_Proxy::CreateProxyResource0_1(instance, config_id,
                                                       audio_input_callback,
@@ skipping 160 matching lines @@
 bool ResourceCreationProxy::Send(IPC::Message* msg) {
   return dispatcher()->Send(msg);
 }
 
 bool ResourceCreationProxy::OnMessageReceived(const IPC::Message& msg) {
   return false;
 }
 
 }  // namespace proxy
 }  // namespace ppapi