[WIP] Provided file system from NACL.

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 274 matching lines @@
           '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',
           'thunk/ppb_websocket_thunk.cc',
           'thunk/ppb_x509_certificate_private_api.h',
           'thunk/ppb_x509_certificate_private_thunk.cc',
           'thunk/thunk.h',
+          'thunk/ppb_filesystem_provider_api.h',
+          'thunk/ppb_filesystem_provider_thunk.cc',
         ],
         'defines': [
           'PPAPI_SHARED_IMPLEMENTATION',
           'PPAPI_THUNK_IMPLEMENTATION',
         ],
         'include_dirs': [
           '..',
         ],
         'target_conditions': [
           ['>(nacl_untrusted_build)==1 or >(nacl_win64_target)==1', {
@@ skipping 45 matching lines @@
               'thunk/ppb_tcp_socket_private_thunk.cc',
               'thunk/ppb_udp_socket_private_thunk.cc',
               'thunk/ppb_x509_certificate_private_thunk.cc',
             ],
           }],
         ],
       }],
     ],
   },
 }