Update base::StartsWith calls to new form

chrome/browser/supervised_user/experimental/supervised_user_async_url_checker.cc

 // Copyright 2014 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/browser/supervised_user/experimental/supervised_user_async_url_checker.h"
 
 #include <string>
 
 #include "base/callback.h"
 #include "base/json/json_reader.h"
@@ skipping 32 matching lines @@
 
 // Build a normalized version of |url| for comparisons. Sets the scheme to a
 // common default and strips a leading "www." from the host.
 GURL GetNormalizedURL(const GURL& url) {
   GURL::Replacements replacements;
   // Set scheme to http.
   replacements.SetSchemeStr(url::kHttpScheme);
   // Strip leading "www." (if any).
   const std::string www("www.");
   const std::string host(url.host());
-  if (base::StartsWithASCII(host, www, true))
+  if (base::StartsWith(host, www, base::CompareCase::SENSITIVE))
     replacements.SetHostStr(base::StringPiece(host).substr(www.size()));
   // Strip trailing slash (if any).
   const std::string path(url.path());
   if (base::EndsWith(path, "/", true))
     replacements.SetPathStr(base::StringPiece(path).substr(0, path.size() - 1));
   return url.ReplaceComponents(replacements);
 }
 
 // Builds a URL for a web search for |url| (using the "inurl:" query parameter
 // and a Custom Search Engine, using the specified |api_key|). If |safe| is
@@ skipping 249 matching lines @@
 
   UMA_HISTOGRAM_TIMES("ManagedUsers.SafeSitesDelay",
                       base::Time::Now() - check->start_time);
 
   cache_.Put(check->url, CheckResult(behavior, uncertain));
 
   for (size_t i = 0; i < check->callbacks.size(); i++)
     check->callbacks[i].Run(check->url, behavior, uncertain);
   checks_in_progress_.erase(it);
 }