Exclude host-side code from the NaCl IRT proxy build.

ppapi/proxy/ppb_audio_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/ppb_audio_proxy.h"
 
 #include "base/compiler_specific.h"
 #include "base/threading/simple_thread.h"
 #include "media/audio/shared_memory_util.h"
 #include "ppapi/c/pp_errors.h"
@@ skipping 162 matching lines @@
     IPC_MESSAGE_HANDLER(PpapiHostMsg_PPBAudio_StartOrStop,
                         OnMsgStartOrStop)
 #endif
     IPC_MESSAGE_HANDLER(PpapiMsg_PPBAudio_NotifyAudioStreamCreated,
                         OnMsgNotifyAudioStreamCreated)
     IPC_MESSAGE_UNHANDLED(handled = false)
   IPC_END_MESSAGE_MAP()
   return handled;
 }
 
+#if !defined(OS_NACL)
 void PPB_Audio_Proxy::OnMsgCreate(PP_Instance instance_id,
                                   int32_t sample_rate,
                                   uint32_t sample_frame_count,
                                   HostResource* result) {
   thunk::EnterResourceCreation resource_creation(instance_id);
   if (resource_creation.failed())
     return;
 
   // Make the resource and get the API pointer to its trusted interface.
   result->SetHostResource(
@@ skipping 112 matching lines @@
     return result;
 
   // shared_memory_handle doesn't belong to us: don't close it.
   *foreign_shared_memory_handle = dispatcher()->ShareHandleWithRemote(
       IntToPlatformFile(shared_memory_handle), false);
   if (*foreign_shared_memory_handle == IPC::InvalidPlatformFileForTransit())
     return PP_ERROR_FAILED;
 
   return PP_OK;
 }
+#endif  // !defined(OS_NACL)
 
 // Processed in the plugin (message from host).
 void PPB_Audio_Proxy::OnMsgNotifyAudioStreamCreated(
     const HostResource& audio_id,
     int32_t result_code,
     SerializedHandle socket_handle,
     SerializedHandle handle) {
   CHECK(socket_handle.is_socket());
   CHECK(handle.is_shmem());
   EnterPluginFromHostResource<PPB_Audio_API> enter(audio_id);
@@ skipping 14 matching lines @@
     static_cast<Audio*>(enter.object())->SetStreamInfo(
         enter.resource()->pp_instance(), handle.shmem(),
         media::PacketSizeInBytes(handle.size()),
         IPC::PlatformFileForTransitToPlatformFile(socket_handle.descriptor()),
         config.object()->GetSampleFrameCount());
   }
 }
 
 }  // namespace proxy
 }  // namespace ppapi