[fsp] Simplify aborting logic.

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 155 matching lines @@
  private:
   typedef std::map<base::FilePath, linked_ptr<FakeEntry> > Entries;
   typedef std::map<int, base::FilePath> OpenedFilesMap;
 
   // Utility function for posting a task which can be aborted by calling the
   // returned callback.
   AbortCallback PostAbortableTask(const base::Closure& callback);
 
   // Aborts a request. |task_id| refers to a posted callback returning a
   // response for the operation, which will be cancelled, hence not called.
-  void Abort(int task_id,
-             const storage::AsyncFileUtil::StatusCallback& callback);
+  void Abort(int task_id);
 
   // Aborts a request. |task_ids| refers to a vector of posted callbacks
   // returning a response for the operation, which will be cancelled, hence not
   // called.
-  void AbortMany(const std::vector<int>& task_ids,
-                 const storage::AsyncFileUtil::StatusCallback& callback);
+  void AbortMany(const std::vector<int>& task_ids);
 
   ProvidedFileSystemInfo file_system_info_;
   Entries entries_;
   OpenedFilesMap opened_files_;
   int last_file_handle_;
   base::CancelableTaskTracker tracker_;
   ObserverList<ProvidedFileSystemObserver> observers_;
   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_