Move StringToLowerASCII to base namespace

chrome/common/importer/firefox_importer_utils.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 "chrome/common/importer/firefox_importer_utils.h"
 
 #include <algorithm>
 #include <map>
 #include <string>
 
@@ skipping 304 matching lines @@
           branding_name = lines[i].substr(name_attr.size());
           break;
         } else if (lines[i].length() > 0 && lines[i][0] == '[') {
           // No longer in the [App] section.
           break;
         }
       }
     }
   }
 
-  StringToLowerASCII(&branding_name);
+  base::StringToLowerASCII(&branding_name);
   if (branding_name.find("iceweasel") != std::string::npos)
     return l10n_util::GetStringUTF16(IDS_IMPORT_FROM_ICEWEASEL);
   return l10n_util::GetStringUTF16(IDS_IMPORT_FROM_FIREFOX);
 }