Convert HtmlDialogUIDelegate::GetDialogTitle() to string16.

chrome/browser/printing/cloud_print/cloud_print_setup_flow.cc

 // Copyright (c) 2011 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/printing/cloud_print/cloud_print_setup_flow.h"
 
 #include "base/json/json_writer.h"
 #include "base/memory/singleton.h"
 #include "base/string_util.h"
 #include "base/utf_string_conversions.h"
@@ skipping 168 matching lines @@
 }
 
 std::string CloudPrintSetupFlow::GetDialogArgs() const {
   return dialog_start_args_;
 }
 
 void CloudPrintSetupFlow::OnCloseContents(TabContents* source,
                                           bool* out_close_dialog) {
 }
 
-std::wstring CloudPrintSetupFlow::GetDialogTitle() const {
-  return UTF16ToWideHack(
-      l10n_util::GetStringUTF16(IDS_CLOUD_PRINT_SETUP_DIALOG_TITLE));
+string16 CloudPrintSetupFlow::GetDialogTitle() const {
+  return l10n_util::GetStringUTF16(IDS_CLOUD_PRINT_SETUP_DIALOG_TITLE);
 }
 
 bool CloudPrintSetupFlow::IsDialogModal() const {
   // We are always modeless.
   return false;
 }
 
 bool CloudPrintSetupFlow::ShouldShowDialogTitle() const {
   return true;
 }
@@ skipping 130 matching lines @@
 }
 
 void CloudPrintSetupFlow::ExecuteJavascriptInIFrame(
     const string16& iframe_xpath,
     const string16& js) {
   if (web_ui_) {
     RenderViewHost* rvh = web_ui_->tab_contents()->render_view_host();
     rvh->ExecuteJavascriptInWebFrame(iframe_xpath, js);
   }
 }