Fix autofill popup controller key press callback registration

components/autofill/core/browser/autofill_external_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_EXTERNAL_DELEGATE_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_EXTERNAL_DELEGATE_H_
 
 #include <vector>
 
 #include "base/compiler_specific.h"
@@ skipping 36 matching lines @@
                            int position) override;
   bool GetDeletionConfirmationText(const base::string16& value,
                                    int identifier,
                                    base::string16* title,
                                    base::string16* body) override;
   bool RemoveSuggestion(const base::string16& value, int identifier) override;
   void ClearPreviewedForm() override;
   // Returns false for all popups prior to |onQuery|, true for credit card
   // popups after call to |onQuery|.
   bool IsCreditCardPopup() override;
+  AutofillDriver* GetAutofillDriver() override;
 
   // Records and associates a query_id with web form data.  Called
   // when the renderer posts an Autofill query to the browser. |bounds|
   // is window relative. We might not want to display the warning if a website
   // has disabled Autocomplete because they have their own popup, and showing
   // our popup on to of theirs would be a poor user experience.
   virtual void OnQuery(int query_id,
                        const FormData& form,
                        const FormFieldData& field,
                        const gfx::RectF& element_bounds);
@@ skipping 93 matching lines @@
   std::vector<base::string16> data_list_labels_;
 
   base::WeakPtrFactory<AutofillExternalDelegate> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillExternalDelegate);
 };
 
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_EXTERNAL_DELEGATE_H_