Fix openal NaCl port.

examples/audio/openal-ogg/openal_ogg.c

 /*
  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 /* This example loads an ogg file using the C Pepper URLLoader interface,
  * decodes the file using libvorbis/libogg, and loop plays the file using
  * OpenAL.  Various properties of the audio source and listener can be changed
@@ skipping 188 matching lines @@
   struct PP_CompletionCallback cb =
       PP_MakeCompletionCallback(ReadCallback, data);
   int32_t read_ret = g_MyState.loader_interface->ReadResponseBody(
       (PP_Resource)data,
       ogg_file_contents + ogg_file_size,
       BUFFER_READ_SIZE,
       cb);
   assert(read_ret == PP_OK_COMPLETIONPENDING);
 }
 
-/* This function is part of the NaCl libopenal port and is
- * required to be called before OpenAL initialization.
- */
-extern void alSetPpapiInfo(PP_Instance, PPB_GetInterface);
-
 void* InitializeOpenAL(void* data) {
   /* PPAPI should be the default device in NaCl, hence 'NULL'. */
   g_MyState.alc_device = alcOpenDevice(NULL);
   assert(g_MyState.alc_device != NULL);
 
   g_MyState.alc_context = alcCreateContext(g_MyState.alc_device, 0);
   assert(g_MyState.alc_context != NULL);
 
   alcMakeContextCurrent(g_MyState.alc_context);
   alGenBuffers(1, &g_MyState.buffer);
@@ skipping 179 matching lines @@
 PP_EXPORT void PPP_ShutdownModule() {
 }
 
 PP_EXPORT const void* PPP_GetInterface(const char* interface_name) {
   if (strcmp(interface_name, PPP_INSTANCE_INTERFACE) == 0)
     return &instance_interface;
   if (strcmp(interface_name, PPP_MESSAGING_INTERFACE) == 0)
     return &messaging_interface;
   return NULL;
 }