Revert 149576 - gdata: Make WeakPtrFactory the last parameter

chrome/browser/chromeos/gdata/operations_base.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_GDATA_OPERATIONS_BASE_H_
 #define CHROME_BROWSER_CHROMEOS_GDATA_OPERATIONS_BASE_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 188 matching lines @@
       GDataErrorCode fetch_error_code) OVERRIDE;
   void RunCallback(GDataErrorCode fetch_error_code,
                    scoped_ptr<base::Value> value);
 
  private:
   // Called when ParseJsonOnBlockingPool() is completed.
   void OnDataParsed(gdata::GDataErrorCode fetch_error_code,
                     scoped_ptr<base::Value>* value);
 
   GetDataCallback callback_;
-
-  // 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<GetDataOperation> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(GetDataOperation);
 };
 
 }  // namespace gdata
 
 #endif  // CHROME_BROWSER_CHROMEOS_GDATA_OPERATIONS_BASE_H_