Convert remaining StringToLowerASCII to ToLowerASCII

net/cookies/cookie_constants.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 "net/cookies/cookie_constants.h"
 
 #include "base/logging.h"
 #include "base/strings/string_util.h"
 
 namespace net {
@@ skipping 12 matching lines @@
       return kPriorityMedium;
     case COOKIE_PRIORITY_LOW:
       return kPriorityLow;
     default:
       NOTREACHED();
   }
   return std::string();
 }
 
 NET_EXPORT CookiePriority StringToCookiePriority(const std::string& priority) {
-  std::string priority_comp(priority);
-  base::StringToLowerASCII(&priority_comp);
+  std::string priority_comp = base::ToLowerASCII(priority);
 
   if (priority_comp == kPriorityHigh)
     return COOKIE_PRIORITY_HIGH;
   if (priority_comp == kPriorityMedium)
     return COOKIE_PRIORITY_MEDIUM;
   if (priority_comp == kPriorityLow)
     return COOKIE_PRIORITY_LOW;
 
   return COOKIE_PRIORITY_DEFAULT;
 }
 
 }  // namespace net