Add the boilerplate for actions to File System Provider API.

chrome/browser/chromeos/file_system_provider/fake_provided_file_system.h

 // Copyright 2014 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_
 #define CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 68 matching lines @@
   const FakeEntry* GetEntry(const base::FilePath& entry_path) const;
 
   // ProvidedFileSystemInterface overrides.
   AbortCallback RequestUnmount(
       const storage::AsyncFileUtil::StatusCallback& callback) override;
   AbortCallback GetMetadata(
       const base::FilePath& entry_path,
       ProvidedFileSystemInterface::MetadataFieldMask fields,
       const ProvidedFileSystemInterface::GetMetadataCallback& callback)
       override;
+  AbortCallback GetActions(const base::FilePath& entry_path,
+                           const GetActionsCallback& callback) override;
   AbortCallback ReadDirectory(
       const base::FilePath& directory_path,
       const storage::AsyncFileUtil::ReadDirectoryCallback& callback) override;
   AbortCallback OpenFile(const base::FilePath& file_path,
                          OpenFileMode mode,
                          const OpenFileCallback& callback) override;
   AbortCallback CloseFile(
       int file_handle,
       const storage::AsyncFileUtil::StatusCallback& callback) override;
   AbortCallback ReadFile(int file_handle,
@@ skipping 90 matching lines @@
   Watchers watchers_;
 
   base::WeakPtrFactory<FakeProvidedFileSystem> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(FakeProvidedFileSystem);
 };
 
 }  // namespace file_system_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_FILE_SYSTEM_PROVIDER_FAKE_PROVIDED_FILE_SYSTEM_H_