Convert GetDisplayStringInLTRDirectionality from wstring to string16.

chrome/browser/custom_home_pages_table_model.cc

 // Copyright (c) 2010 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/custom_home_pages_table_model.h"
 
 #include "app/l10n_util.h"
 #include "app/resource_bundle.h"
 #include "app/table_model_observer.h"
 #include "base/i18n/rtl.h"
@@ skipping 191 matching lines @@
       *index = static_cast<int>(i);
       return &entries_[i];
     }
   }
   return NULL;
 }
 
 std::wstring CustomHomePagesTableModel::FormattedURL(int row) const {
   std::wstring languages =
       UTF8ToWide(profile_->GetPrefs()->GetString(prefs::kAcceptLanguages));
-  std::wstring url(net::FormatUrl(entries_[row].url, languages));
-  base::i18n::GetDisplayStringInLTRDirectionality(&url);
-  return url;
+  string16 url = WideToUTF16(net::FormatUrl(entries_[row].url, languages));
+  url = base::i18n::GetDisplayStringInLTRDirectionality(url);
+  return UTF16ToWide(url);
 }