Random clean up in c/b/cros/drive.

chrome/browser/chromeos/drive/resource_metadata.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_DRIVE_RESOURCE_METADATA_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_RESOURCE_METADATA_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 238 matching lines @@
   // Synchronous version of RefreshEntryOnUIThread().
   FileError RefreshEntry(const ResourceEntry& entry,
                          base::FilePath* out_file_path,
                          ResourceEntry* out_entry);
 
   // Removes all child files of the directory pointed by
   // |directory_fetch_info| and replaces them with
   // |entry_map|. The changestamp of the directory will be updated per
   // |directory_fetch_info|. |callback| is called with the directory path.
   // |callback| must not be null.
-  //
-  // TODO(satorux): For "fast fetch" crbug.com/178348, this function should
-  // be able to update child directories too. The existing directories should
-  // remain as-is, but the new directories should be added with changestamp
-  // set to zero, which will be fast fetched.
   // Must be called on the UI thread.
   void RefreshDirectoryOnUIThread(
       const DirectoryFetchInfo& directory_fetch_info,
       const ResourceEntryMap& entry_map,
       const FileMoveCallback& callback);
 
   // Recursively get child directories of entry pointed to by |resource_id|.
   // Must be called on the UI thread.
   void GetChildDirectoriesOnUIThread(
       const std::string& resource_id,
@@ skipping 98 matching lines @@
   // invalidate its weak pointers before other members are destroyed.
   base::WeakPtrFactory<ResourceMetadata> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ResourceMetadata);
 };
 
 }  // namespace internal
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_RESOURCE_METADATA_H_