drive: Support offline delete

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 79 matching lines @@
   // Finds and reads a directory by |file_path|.
   // |callback| must not be null.
   // Must be called on the UI thread.
   void ReadDirectoryByPathOnUIThread(const base::FilePath& file_path,
                                      const ReadDirectoryCallback& callback);
 
   // Synchronous version of ReadDirectoryByPathOnUIThread().
   FileError ReadDirectoryByPath(const base::FilePath& file_path,
                                 ResourceEntryVector* out_entries);
 
+  // Finds and reads a directory by |id|.
+  FileError ReadDirectoryById(const std::string& id,
+                              ResourceEntryVector* out_entries);
+
   // Replaces an existing entry with the same local ID as |entry|.
   FileError RefreshEntry(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 id of the resource named |base_name| directly under
   // the directory with |parent_local_id|.
   // If not found, empty string will be returned.
@@ skipping 40 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_