Serialize date_created in PasswordStoreX properly

chrome/browser/password_manager/native_backend_kwallet_x.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_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_
 #define CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 124 matching lines @@
   // when reading old pickles that fail to deserialize using the native size.
   static bool DeserializeValueSize(const std::string& signon_realm,
                                    const PickleIterator& iter,
                                    int version,
                                    bool size_32,
                                    bool warn_only,
                                    ScopedVector<autofill::PasswordForm>* forms);
 
   // In case the fields in the pickle ever change, version them so we can try to
   // read old pickles. (Note: do not eat old pickles past the expiration date.)
-  static const int kPickleVersion = 4;
+  static const int kPickleVersion = 5;
 
   // Generates a profile-specific folder name based on profile_id_.
   std::string GetProfileSpecificFolderName() const;
 
   // The local profile id, used to generate the folder name.
   const LocalProfileId profile_id_;
 
   // The KWallet folder name, possibly based on the local profile id.
   std::string folder_name_;
 
   // DBus handle for communication with klauncher and kwalletd.
   scoped_refptr<dbus::Bus> session_bus_;
   // Object proxy for kwalletd. We do not own this.
   dbus::ObjectProxy* kwallet_proxy_;
 
   // The name of the wallet we've opened. Set during Init().
   std::string wallet_name_;
   // The application name (e.g. "Chromium"), shown in KWallet auth dialogs.
   const std::string app_name_;
 
   DISALLOW_COPY_AND_ASSIGN(NativeBackendKWallet);
 };
 
 #endif  // CHROME_BROWSER_PASSWORD_MANAGER_NATIVE_BACKEND_KWALLET_X_H_