Change the behavior of the [X] Save details to Wallet checkbox notification to:

chrome/browser/ui/autofill/autofill_dialog_controller.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_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_H_
 #define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_H_
 
 #include <vector>
 
 #include "base/string16.h"
@@ skipping 58 matching lines @@
   virtual bool ShouldOfferToSaveInChrome() const = 0;
 
   // Returns the model for the account chooser. It will return NULL if the
   // account chooser should not show a menu. In this case, clicking on the
   // account chooser should initiate sign-in.
   virtual ui::MenuModel* MenuModelForAccountChooser() = 0;
 
   // Returns the icon that should be shown in the account chooser.
   virtual gfx::Image AccountChooserImage() = 0;
 
+  // Whether the user last selected "Pay Without Wallet" as their payment
+  // method.
+  virtual bool GetPayWithoutWallet() const = 0;
+
+  // Change the value of the "Pay Without Wallet" pref.
+  virtual void SetPayWithoutWallet(bool pay_without_wallet) = 0;
+
   // Whether or not an Autocheckout flow is running.
   virtual bool AutocheckoutIsRunning() const = 0;
 
   // Whether or not there was an error in an Autocheckout flow.
   virtual bool HadAutocheckoutError() const = 0;
 
   // Whether or not the |button| should be enabled.
   virtual bool IsDialogButtonEnabled(ui::DialogButton button) const = 0;
 
   // Returns ranges to linkify in the text returned by |LegalDocumentsText()|.
@@ skipping 92 matching lines @@
   // The web contents that prompted the dialog.
   virtual content::WebContents* web_contents() = 0;
 
  protected:
   virtual ~AutofillDialogController();
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_H_