Fix autofill popup controller key press callback registration

components/autofill/core/browser/autofill_popup_delegate.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_POPUP_DELEGATE_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_POPUP_DELEGATE_H_
 
 #include "base/strings/string16.h"
 
 namespace autofill {
 
+class AutofillDriver;
+
 // An interface for interaction with AutofillPopupController. Will be notified
 // of events by the controller.
 class AutofillPopupDelegate {
  public:
   // Called when the Autofill popup is shown.
   virtual void OnPopupShown() = 0;
 
   // Called when the Autofill popup is hidden.
   virtual void OnPopupHidden() = 0;
 
@@ skipping 17 matching lines @@
   // Delete the described suggestion. Returns true if something was deleted,
   // or false if deletion is not allowed.
   virtual bool RemoveSuggestion(const base::string16& value,
                                 int identifier) = 0;
 
   // Informs the delegate that the Autofill previewed form should be cleared.
   virtual void ClearPreviewedForm() = 0;
 
   // Returns true if popup is for credit card.
   virtual bool IsCreditCardPopup() = 0;
+
+  // Returns the associated AutofillDriver.
+  virtual AutofillDriver* GetAutofillDriver() = 0;
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_POPUP_DELEGATE_H_