Final part of PathString cleanup.

chrome/browser/sync/util/character_set_converters.h

 // Copyright (c) 2009 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_SYNC_UTIL_CHARACTER_SET_CONVERTERS_H_
 #define CHROME_BROWSER_SYNC_UTIL_CHARACTER_SET_CONVERTERS_H_
 
 #include <string>
 
 #include "base/file_path.h"
 #include "chrome/browser/sync/util/sync_types.h"
 
 // Need to cast literals (Linux, OSX)
 #define STRING16_UGLY_DOUBLE_DEFINE_HACK(s) \
     reinterpret_cast<const char16*>(L##s)
 #define STRING16(s) STRING16_UGLY_DOUBLE_DEFINE_HACK(s)
 
 namespace browser_sync {
 
 // Returns UTF8 string from the given FilePath.
 std::string FilePathToUTF8(const FilePath& file_path);
 
 // Returns FilePath from the given UTF8 string.
 FilePath UTF8ToFilePath(const std::string& utf8);
 
-void TrimPathStringToValidCharacter(std::string* string);
-
 }  // namespace browser_sync
 
 #endif  // CHROME_BROWSER_SYNC_UTIL_CHARACTER_SET_CONVERTERS_H_