Cache Autofill heuristics regexes

chrome/browser/autofill/autofill_scanner.h

 // Copyright (c) 2011 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_AUTOFILL_AUTOFILL_SCANNER_H_
 #define CHROME_BROWSER_AUTOFILL_AUTOFILL_SCANNER_H_
 #pragma once
 
 #include <vector>
 
@@ skipping 31 matching lines @@
 
   // A stack of saved positions in the stream.
   std::vector<std::vector<const AutofillField*>::const_iterator> saved_cursors_;
 
   // The past-the-end pointer for the stream.
   const std::vector<const AutofillField*>::const_iterator end_;
 
   DISALLOW_COPY_AND_ASSIGN(AutofillScanner);
 };
 
-// Parsing utilities.
-namespace autofill {
-
-// Case-insensitive regular expression matching.  Returns true if |pattern| is
-// found in |input|.
-bool MatchString(const string16& input, const string16& pattern);
-
-}  // namespace autofill
-
 #endif  // CHROME_BROWSER_AUTOFILL_AUTOFILL_SCANNER_H_