Add utf_string_conversions to base namespace.

chrome/browser/plugins/plugin_finder.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/browser/plugins/plugin_finder.h"
 
 #include "base/bind.h"
 #include "base/json/json_reader.h"
 #include "base/message_loop.h"
 #include "base/prefs/pref_registry_simple.h"
@@ skipping 36 matching lines @@
 // the filename without extension if the name is empty.
 static string16 GetGroupName(const webkit::WebPluginInfo& plugin) {
   if (!plugin.name.empty())
     return plugin.name;
 
   base::FilePath::StringType path =
       plugin.path.BaseName().RemoveExtension().value();
 #if defined(OS_POSIX)
   return UTF8ToUTF16(path);
 #elif defined(OS_WIN)
-  return WideToUTF16(path);
+  return base::WideToUTF16(path);
 #endif
 }
 
 void LoadMimeTypes(bool matching_mime_types,
                    const DictionaryValue* plugin_dict,
                    PluginMetadata* plugin) {
   const ListValue* mime_types = NULL;
   std::string list_key =
       matching_mime_types ? "matching_mime_types" : "mime_types";
   if (!plugin_dict->GetList(list_key, &mime_types))
@@ skipping 231 matching lines @@
     metadata->AddMatchingMimeType(plugin.mime_types[i].mime_type);
 
   DCHECK(metadata->MatchesPlugin(plugin));
   if (identifier_plugin_.find(identifier) != identifier_plugin_.end())
     identifier = GetLongIdentifier(plugin);
 
   DCHECK(identifier_plugin_.find(identifier) == identifier_plugin_.end());
   identifier_plugin_[identifier] = metadata;
   return metadata->Clone();
 }