Add the boilerplate for actions to File System Provider API.

chrome/chrome_browser_chromeos.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.
 
 {
   'variables': {
     # These files lists are shared with the GN build.
     'browser_chromeos_sources': [
         # All .cc, .h, .m, and .mm files under browser/chromeos, except for tests
@@ skipping 284 matching lines @@
         'browser/chromeos/file_system_provider/operations/configure.cc',
         'browser/chromeos/file_system_provider/operations/configure.h',
         'browser/chromeos/file_system_provider/operations/copy_entry.cc',
         'browser/chromeos/file_system_provider/operations/copy_entry.h',
         'browser/chromeos/file_system_provider/operations/create_directory.cc',
         'browser/chromeos/file_system_provider/operations/create_directory.h',
         'browser/chromeos/file_system_provider/operations/create_file.cc',
         'browser/chromeos/file_system_provider/operations/create_file.h',
         'browser/chromeos/file_system_provider/operations/delete_entry.cc',
         'browser/chromeos/file_system_provider/operations/delete_entry.h',
+        'browser/chromeos/file_system_provider/operations/get_actions.cc',
+        'browser/chromeos/file_system_provider/operations/get_actions.h',
         'browser/chromeos/file_system_provider/operations/get_metadata.cc',
         'browser/chromeos/file_system_provider/operations/get_metadata.h',
         'browser/chromeos/file_system_provider/operations/move_entry.cc',
         'browser/chromeos/file_system_provider/operations/move_entry.h',
         'browser/chromeos/file_system_provider/operations/open_file.cc',
         'browser/chromeos/file_system_provider/operations/open_file.h',
         'browser/chromeos/file_system_provider/operations/operation.cc',
         'browser/chromeos/file_system_provider/operations/operation.h',
         'browser/chromeos/file_system_provider/operations/read_directory.cc',
         'browser/chromeos/file_system_provider/operations/read_directory.h',
@@ skipping 1020 matching lines @@
         'browser/chromeos/attestation/attestation_signed_data.proto',
       ],
       'variables': {
         'proto_in_dir': 'browser/chromeos/attestation',
         'proto_out_dir': 'chrome/browser/chromeos/attestation',
       },
       'includes': [ '../build/protoc.gypi' ]
     },
   ],
 }