Add missing base:: to StringToLowerASCII

chrome/browser/chrome_elf_init_win.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 "base/bind.h"
 #include "base/files/file_path.h"
 #include "base/metrics/field_trial.h"
 #include "base/metrics/histogram.h"
 #include "base/metrics/sparse_histogram.h"
 #include "base/strings/string_util.h"
@@ skipping 200 matching lines @@
 
 bool GetLoadedBlacklistedModules(std::vector<base::string16>* module_names) {
   DCHECK(module_names);
 
   std::set<ModuleInfo> module_info_set;
   if (!GetLoadedModules(&module_info_set))
     return false;
 
   std::set<ModuleInfo>::const_iterator module_iter(module_info_set.begin());
   for (; module_iter != module_info_set.end(); ++module_iter) {
-    base::string16 module_file_name(StringToLowerASCII(
+    base::string16 module_file_name(base::StringToLowerASCII(
         base::FilePath(module_iter->name).BaseName().value()));
     if (blacklist::GetBlacklistIndex(module_file_name.c_str()) != -1) {
       module_names->push_back(module_iter->name);
     }
   }
 
   return true;
 }