Use AutofillDriver* in ContentAutofillDriverFactory when possible

components/autofill/core/browser/autofill_driver.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 COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_DRIVER_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_DRIVER_H_
 
 #include <vector>
 
 #include "components/autofill/core/common/form_data.h"
@@ skipping 85 matching lines @@
 
   // Transform bounding box coordinates to real viewport coordinates. In
   // the case of a page spanning multiple renderer processes, subframe
   // renderers cannot do this transformation themselves.
   virtual gfx::RectF TransformBoundingBoxToViewportCoordinates(
       const gfx::RectF& bounding_box) = 0;
 
   // Called when the user interacted with a credit card form, so that
   // the current page's security state can be updated appropriately.
   virtual void DidInteractWithCreditCardForm() = 0;
+
+  // Tells the driver that the frame navigated to a different page.
+  virtual void NavigatedToDifferentPage() {}
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_DRIVER_H_