Update base::StartsWith calls to new form

chrome/common/pref_names_util.cc

 // 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.
 
 #include "chrome/common/pref_names_util.h"
 
 #include "base/strings/string_util.h"
 
 namespace pref_names_util {
 
 const char kWebKitFontPrefPrefix[] = "webkit.webprefs.fonts.";
 
 bool ParseFontNamePrefPath(const std::string& pref_path,
                            std::string* generic_family,
                            std::string* script) {
-  if (!base::StartsWithASCII(pref_path, kWebKitFontPrefPrefix, true))
+  if (!base::StartsWith(pref_path, kWebKitFontPrefPrefix,
+                        base::CompareCase::SENSITIVE))
     return false;
 
   size_t start = strlen(kWebKitFontPrefPrefix);
   size_t pos = pref_path.find('.', start);
   if (pos == std::string::npos || pos + 1 == pref_path.length())
     return false;
   if (generic_family)
     *generic_family = pref_path.substr(start, pos - start);
   if (script)
     *script = pref_path.substr(pos + 1);
   return true;
 }
 
 }  // namespace pref_names_util