ppapi: define PPB_AudioEncoder API

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_buffer_dev.h"
@@ skipping 12 matching lines @@
 #include "ppapi/c/dev/ppb_trace_event_dev.h"
 #include "ppapi/c/dev/ppb_truetype_font_dev.h"
 #include "ppapi/c/dev/ppb_url_util_dev.h"
 #include "ppapi/c/dev/ppb_var_deprecated.h"
 #include "ppapi/c/dev/ppb_video_capture_dev.h"
 #include "ppapi/c/dev/ppb_video_decoder_dev.h"
 #include "ppapi/c/dev/ppb_view_dev.h"
 #include "ppapi/c/ppb_audio.h"
 #include "ppapi/c/ppb_audio_buffer.h"
 #include "ppapi/c/ppb_audio_config.h"
+#include "ppapi/c/ppb_audio_encoder.h"

[Nico, 2015/09/15 02:56:51]

Is this needed? There's no code change in this file other than the addition of
the header.

[llandwerlin-old, 2015/09/15 09:27:55]

This is needed because of 
PROXIED_IFACE(PPB_AUDIOENCODER_INTERFACE_0_1, PPB_AudioEncoder_0_1)

in ppapi/thunk/interfaces_ppb_public_dev_channel.h.

This is macro magic to figure what interfaces are supported.
I'm not sure what comment I should add in files using this trick.

 #include "ppapi/c/ppb_compositor.h"
 #include "ppapi/c/ppb_compositor_layer.h"
 #include "ppapi/c/ppb_console.h"
 #include "ppapi/c/ppb_core.h"
 #include "ppapi/c/ppb_file_io.h"
 #include "ppapi/c/ppb_file_ref.h"
 #include "ppapi/c/ppb_file_system.h"
 #include "ppapi/c/ppb_fullscreen.h"
 #include "ppapi/c/ppb_gamepad.h"
 #include "ppapi/c/ppb_graphics_2d.h"
@@ skipping 85 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;
 }