[Autofill/Autocomplete Feature] Substring matching instead of prefix matching.

chrome/browser/ui/autofill/autofill_dialog_controller_impl.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_IMPL_H_
 #define CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_IMPL_H_
 
 #include <set>
 #include <vector>
 
@@ skipping 148 matching lines @@
   void LegalDocumentLinkClicked(const gfx::Range& range) override;
   bool OnCancel() override;
   bool OnAccept() override;
   Profile* profile() override;
   content::WebContents* GetWebContents() override;
 
   // AutofillPopupDelegate implementation.
   void OnPopupShown() override;
   void OnPopupHidden() override;
   void DidSelectSuggestion(const base::string16& value,
-                           int identifier) override;
+                           int identifier,
+                           size_t match_start) override;
   void DidAcceptSuggestion(const base::string16& value,
                            int identifier,
                            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;
 
@@ skipping 670 matching lines @@
   base::string16 submitted_cardholder_name_;
 
   base::WeakPtrFactory<AutofillDialogControllerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillDialogControllerImpl);
 };
 
 }  // namespace autofill
 
 #endif  // CHROME_BROWSER_UI_AUTOFILL_AUTOFILL_DIALOG_CONTROLLER_IMPL_H_