Revert of Remove some legacy versions of StartsWith and EndsWith.

extensions/common/user_script.cc

 // 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.
 
 #include "extensions/common/user_script.h"
 
 #include "base/atomic_sequence_num.h"
 #include "base/command_line.h"
 #include "base/pickle.h"
 #include "base/strings/pattern.h"
@@ skipping 34 matching lines @@
 const char UserScript::kFileExtension[] = ".user.js";
 
 
 // static
 int UserScript::GenerateUserScriptID() {
    return g_user_script_id_generator.GetNext();
 }
 
 bool UserScript::IsURLUserScript(const GURL& url,
                                  const std::string& mime_type) {
-  return base::EndsWith(url.ExtractFileName(), kFileExtension,
-                        base::CompareCase::INSENSITIVE_ASCII) &&
+  return base::EndsWith(url.ExtractFileName(), kFileExtension, false) &&
          mime_type != "text/html";
 }
 
 // static
 int UserScript::ValidUserScriptSchemes(bool canExecuteScriptEverywhere) {
   if (canExecuteScriptEverywhere)
     return URLPattern::SCHEME_ALL;
   int valid_schemes = kValidUserScriptSchemes;
   if (!base::CommandLine::ForCurrentProcess()->HasSwitch(
           switches::kExtensionsOnChromeURLs)) {
@@ skipping 215 matching lines @@
 }
 
 bool operator<(const UserScript& script1, const UserScript& script2) {
   // The only kind of script that should be compared is the kind that has its
   // IDs initialized to a meaningful value.
   DCHECK(script1.id() != -1 && script2.id() != -1);
   return script1.id() < script2.id();
 }
 
 }  // namespace extensions