ppapi: define PPB_AudioEncoder API

ppapi/ppapi_shared.gypi

 # 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.
 
 {
   'target_defaults': {
     'variables': {
       'ppapi_shared_target': 0,
     },
     'target_conditions': [
@@ skipping 127 matching lines @@
           'shared_impl/private/ppb_x509_certificate_private_shared.cc',
           'shared_impl/private/ppb_x509_certificate_private_shared.h',
 
           'thunk/enter.cc',
           'thunk/enter.h',
           'thunk/ppb_audio_api.h',
           'thunk/ppb_audio_buffer_api.h',
           'thunk/ppb_audio_buffer_thunk.cc',
           'thunk/ppb_audio_config_api.h',
           'thunk/ppb_audio_config_thunk.cc',
+          'thunk/ppb_audio_encoder_api.h',
+          'thunk/ppb_audio_encoder_thunk.cc',
           'thunk/ppb_audio_input_api.h',
           'thunk/ppb_audio_input_dev_thunk.cc',
           'thunk/ppb_audio_thunk.cc',
           'thunk/ppb_broker_api.h',
           'thunk/ppb_broker_thunk.cc',
           'thunk/ppb_browser_font_trusted_api.h',
           'thunk/ppb_browser_font_trusted_thunk.cc',
           'thunk/ppb_buffer_api.h',
           'thunk/ppb_buffer_thunk.cc',
           'thunk/ppb_camera_capabilities_api.h',
@@ skipping 198 matching lines @@
               'thunk/ppb_tcp_socket_private_thunk.cc',
               'thunk/ppb_udp_socket_private_thunk.cc',
               'thunk/ppb_x509_certificate_private_thunk.cc',
             ],
           }],
         ],
       }],
     ],
   },
 }