Some wstring -> string16 conversion in src/app.

app/resource_bundle_dummy.cc

 // Copyright (c) 2006-2009 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 "app/resource_bundle.h"
 
 #include <windows.h>
 
 #include "base/lock.h"
 #include "base/logging.h"
@@ skipping 42 matching lines @@
     : lock_(new Lock),
       resources_data_(NULL),
       locale_resources_data_(NULL) {
 }
 
 ResourceBundle::~ResourceBundle() {
 }
 
 
 string16 ResourceBundle::GetLocalizedString(int message_id) {
-  return std::wstring();
+  return string16();
 }