Add FileIOTrusted class.

ppapi/ppapi_sources.gypi

 # Copyright (c) 2011 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.
 
 {
   'variables': {
     'c_sources': [
       'c/pp_bool.h',
       'c/pp_completion_callback.h',
       'c/pp_errors.h',
@@ skipping 223 matching lines @@
       'cpp/private/net_address_private.cc',
       'cpp/private/net_address_private.h',
       'cpp/private/tcp_socket_private.cc',
       'cpp/private/tcp_socket_private.h',
       'cpp/private/udp_socket_private.cc',
       'cpp/private/udp_socket_private.h',
       'cpp/private/var_private.cc',
       'cpp/private/var_private.h',
 
       # Trusted interfaces.
+      'cpp/trusted/file_io_trusted.cc',
+      'cpp/trusted/file_io_trusted.h',
       'cpp/trusted/file_chooser_trusted.cc',
       'cpp/trusted/file_chooser_trusted.h',
     ],
     #
     # Common Testing source for trusted and untrusted (NaCl) pugins.
     #
     'test_sources_common': [
       # Common test files
       'tests/all_c_includes.h',
       'tests/all_cpp_includes.h',
@@ skipping 123 matching lines @@
           'c/dev/ppb_transport_dev.h',
         ],
         'cpp_sources': [
           'cpp/dev/transport_dev.cc',
           'cpp/dev/transport_dev.h',
         ],
       },
     }],
   ],
 }