Pepper: add PPB_VideoEncoder interface

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 259 matching lines @@
           'thunk/ppb_url_response_info_thunk.cc',
           'thunk/ppb_url_util_thunk.cc',
           'thunk/ppb_var_array_thunk.cc',
           'thunk/ppb_var_dictionary_thunk.cc',
           'thunk/ppb_video_capture_api.h',
           'thunk/ppb_video_capture_thunk.cc',
           'thunk/ppb_video_decoder_api.h',
           'thunk/ppb_video_decoder_dev_api.h',
           'thunk/ppb_video_decoder_dev_thunk.cc',
           'thunk/ppb_video_decoder_thunk.cc',
+          'thunk/ppb_video_encoder_api.h',
+          'thunk/ppb_video_encoder_thunk.cc',
           'thunk/ppb_video_destination_private_api.h',
           'thunk/ppb_video_destination_private_thunk.cc',
           'thunk/ppb_video_frame_api.h',
           'thunk/ppb_video_frame_thunk.cc',
           'thunk/ppb_video_source_private_api.h',
           'thunk/ppb_video_source_private_thunk.cc',
           'thunk/ppb_view_api.h',
           'thunk/ppb_view_dev_thunk.cc',
           'thunk/ppb_view_thunk.cc',
           'thunk/ppb_websocket_api.h',
@@ skipping 64 matching lines @@
               'thunk/ppb_tcp_socket_private_thunk.cc',
               'thunk/ppb_udp_socket_private_thunk.cc',
               'thunk/ppb_x509_certificate_private_thunk.cc',
             ],
           }],
         ],
       }],
     ],
   },
 }