drive: Trigger "fast fetch" if remote update came during full loading.

chrome/browser/chromeos/drive/change_list_loader.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_CHANGE_LIST_LOADER_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_CHANGE_LIST_LOADER_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 166 matching lines @@
   void LoadAfterGetAboutResource(
       int64 local_changestamp,
       google_apis::GDataErrorCode status,
       scoped_ptr<google_apis::AboutResource> about_resource);
 
   // Part of Load().
   // This function should be called when the change list load is complete.
   // Flushes the callbacks for change list loading and all directory loading.
   void OnChangeListLoadComplete(FileError error);
 
+  // Called when the loading about_resource_loader_->UpdateAboutResource is
+  // completed.
+  void OnAboutResourceUpdated(google_apis::GDataErrorCode error,
+                              scoped_ptr<google_apis::AboutResource> resource);
+
   // ================= Implementation for change list loading =================
 
   // Part of LoadFromServerIfNeeded().
   // Starts loading the change list since |start_changestamp|, or the full
   // resource list if |start_changestamp| is zero.
   void LoadChangeListFromServer(int64 start_changestamp);
 
   // Part of LoadChangeListFromServer().
   // Called when the entire change list is loaded.
   void LoadChangeListFromServerAfterLoadChangeList(
@@ skipping 30 matching lines @@
   // Note: This should remain the last member so it'll be destroyed and
   // invalidate its weak pointers before any other members are destroyed.
   base::WeakPtrFactory<ChangeListLoader> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(ChangeListLoader);
 };
 
 }  // namespace internal
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_CHANGE_LIST_LOADER_H_