Convert remaining StringToLowerASCII to ToLowerASCII

net/http/transport_security_state.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 "net/http/transport_security_state.h"
 
 #if defined(USE_OPENSSL)
 #include <openssl/ecdsa.h>
 #include <openssl/ssl.h>
 #else  // !defined(USE_OPENSSL)
@@ skipping 415 matching lines @@
   size_t found = hostname.find_last_not_of('.');
   if (found != std::string::npos) {
     hostname.erase(found + 1);
   } else {
     hostname.clear();
   }
 
   // |hostname| has already undergone IDN conversion, so should be
   // entirely A-Labels. The preload data is entirely normalized to
   // lower case.
-  base::StringToLowerASCII(&hostname);
-
+  hostname = base::ToLowerASCII(hostname);
   if (hostname.empty()) {
     return true;
   }
 
   // hostname_offset contains one more than the index of the current character
   // in the hostname that is being considered. It's one greater so that we can
   // represent the position just before the beginning (with zero).
   size_t hostname_offset = hostname.size();
 
   for (;;) {
@@ skipping 778 matching lines @@
 TransportSecurityState::PKPStateIterator::PKPStateIterator(
     const TransportSecurityState& state)
     : iterator_(state.enabled_pkp_hosts_.begin()),
       end_(state.enabled_pkp_hosts_.end()) {
 }
 
 TransportSecurityState::PKPStateIterator::~PKPStateIterator() {
 }
 
 }  // namespace