Move MatchPattern to its own header and the base namespace.

base/strings/string_util.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.
 //
 // This file defines utility functions for working with strings.
 
 #ifndef BASE_STRINGS_STRING_UTIL_H_
 #define BASE_STRINGS_STRING_UTIL_H_
 
 #include <ctype.h>
@@ skipping 520 matching lines @@
     const base::StringPiece& format_string,
     const std::vector<std::string>& subst,
     std::vector<size_t>* offsets);
 
 // Single-string shortcut for ReplaceStringHolders. |offset| may be NULL.
 BASE_EXPORT base::string16 ReplaceStringPlaceholders(
     const base::string16& format_string,
     const base::string16& a,
     size_t* offset);
 
-// Returns true if the string passed in matches the pattern. The pattern
-// string can contain wildcards like * and ?
-// The backslash character (\) is an escape character for * and ?
-// We limit the patterns to having a max of 16 * or ? characters.
-// ? matches 0 or 1 character, while * matches 0 or more characters.
-BASE_EXPORT bool MatchPattern(const base::StringPiece& string,
-                              const base::StringPiece& pattern);
-BASE_EXPORT bool MatchPattern(const base::string16& string,
-                              const base::string16& pattern);
-
 #endif  // BASE_STRINGS_STRING_UTIL_H_