Support audio output device enumeration and selection in PPAPI

chrome/common/ppapi_utils.cc

 // Copyright (c) 2015 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 "chrome/common/ppapi_utils.h"
 
 #include <cstring>
 
 #include "build/build_config.h"
 #include "ppapi/c/dev/ppb_audio_input_dev.h"
+#include "ppapi/c/dev/ppb_audio_output_dev.h"
 #include "ppapi/c/dev/ppb_buffer_dev.h"
 #include "ppapi/c/dev/ppb_char_set_dev.h"
 #include "ppapi/c/dev/ppb_crypto_dev.h"
 #include "ppapi/c/dev/ppb_cursor_control_dev.h"
 #include "ppapi/c/dev/ppb_device_ref_dev.h"
 #include "ppapi/c/dev/ppb_file_chooser_dev.h"
 #include "ppapi/c/dev/ppb_gles_chromium_texture_mapping_dev.h"
 #include "ppapi/c/dev/ppb_ime_input_event_dev.h"
 #include "ppapi/c/dev/ppb_memory_dev.h"
 #include "ppapi/c/dev/ppb_opengles2ext_dev.h"
@@ skipping 106 matching lines @@
 
 #define LEGACY_IFACE(iface_str, dummy) \
   if (strcmp(name, iface_str) == 0)    \
     return true;
 
 #include "ppapi/thunk/interfaces_legacy.h"
 
 #undef LEGACY_IFACE
   return false;
 }