drive: Stop using resource ID to access local metadata in CreateDirectoryOperation

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 <set>
 #include <string>
 #include <vector>
@@ skipping 146 matching lines @@
       const base::FilePath& second_path,
       const GetResourceEntryPairCallback& callback);
 
   // Replaces an existing entry whose ID is |id| with |entry|.
   FileError RefreshEntry(const std::string& id, const ResourceEntry& entry);
 
   // Recursively gets directories under the entry pointed to by |id|.
   void GetSubDirectoriesRecursively(const std::string& id,
                                     std::set<base::FilePath>* sub_directories);
 
-  // Returns the resource id of the resource named |base_name| directly under
+  // Returns the id of the resource named |base_name| directly under
   // the directory with |parent_local_id|.
   // If not found, empty string will be returned.
-  std::string GetChildResourceId(const std::string& parent_local_id,
-                                 const std::string& base_name);
+  std::string GetChildId(const std::string& parent_local_id,
+                         const std::string& base_name);
 
   // Returns an object to iterate over entries.
   scoped_ptr<Iterator> GetIterator();
 
   // Returns virtual file path of the entry.
   base::FilePath GetFilePath(const std::string& id);
 
   // Returns ID of the entry at the given path.
   FileError GetIdByPath(const base::FilePath& file_path, std::string* out_id);
 
@@ skipping 49 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_