Add the boilerplate for actions to File System Provider API.

chrome/browser/chromeos/file_system_provider/throttled_file_system.cc

 // Copyright 2015 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.
 
 #include "chrome/browser/chromeos/file_system_provider/throttled_file_system.h"
 
 #include <limits>
 #include <vector>
 
 #include "base/files/file.h"
@@ skipping 20 matching lines @@
   return file_system_->RequestUnmount(callback);
 }
 
 AbortCallback ThrottledFileSystem::GetMetadata(
     const base::FilePath& entry_path,
     MetadataFieldMask fields,
     const GetMetadataCallback& callback) {
   return file_system_->GetMetadata(entry_path, fields, callback);
 }
 
+AbortCallback ThrottledFileSystem::GetActions(
+    const base::FilePath& entry_path,
+    const GetActionsCallback& callback) {
+  return file_system_->GetActions(entry_path, callback);
+}
+
 AbortCallback ThrottledFileSystem::ReadDirectory(
     const base::FilePath& directory_path,
     const storage::AsyncFileUtil::ReadDirectoryCallback& callback) {
   return file_system_->ReadDirectory(directory_path, callback);
 }
 
 AbortCallback ThrottledFileSystem::ReadFile(
     int file_handle,
     net::IOBuffer* buffer,
     int64 offset,
@@ skipping 171 matching lines @@
 
   const int queue_token = it->second;
   open_queue_->Complete(queue_token);
   opened_files_.erase(file_handle);
 
   callback.Run(result);
 }
 
 }  // namespace file_system_provider
 }  // namespace chromeos