[ew] Simplify the entry watcher logic.

content/public/test/test_file_system_backend.h

 // Copyright 2013 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 CONTENT_PUBLIC_TEST_TEST_FILE_SYSTEM_BACKEND_H_
 #define CONTENT_PUBLIC_TEST_TEST_FILE_SYSTEM_BACKEND_H_
 
 #include "base/files/file_path.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 74 matching lines @@
   void set_require_copy_or_move_validator(bool flag) {
     require_copy_or_move_validator_ = flag;
   }
 
  private:
   class QuotaUtil;
 
   base::FilePath base_path_;
   scoped_refptr<base::SequencedTaskRunner> task_runner_;
   scoped_ptr<storage::AsyncFileUtilAdapter> file_util_;
-  scoped_ptr<storage::WatcherManager> watcher_manager_;
   scoped_ptr<QuotaUtil> quota_util_;
   storage::UpdateObserverList update_observers_;
   storage::ChangeObserverList change_observers_;
 
   bool require_copy_or_move_validator_;
   scoped_ptr<storage::CopyOrMoveFileValidatorFactory>
       copy_or_move_file_validator_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(TestFileSystemBackend);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_TEST_TEST_FILE_SYSTEM_BACKEND_H_