Add base:: namespace to string16 in chrome/browser/chromeos.

chrome/browser/chromeos/charger_replace/charger_link_dialog.cc

 // Copyright (c) 2013 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/chromeos/charger_replace/charger_link_dialog.h"
 
 #include "base/json/json_writer.h"
 #include "base/prefs/pref_service.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/profiles/profile_manager.h"
@@ skipping 29 matching lines @@
 void ChargerLinkDialog::Show() {
   chrome::ShowWebDialog(parent_window_,
                         ProfileManager::GetDefaultProfile(),
                         this);
 }
 
 ui::ModalType ChargerLinkDialog::GetDialogModalType() const {
   return ui::MODAL_TYPE_SYSTEM;
 }
 
-string16 ChargerLinkDialog::GetDialogTitle() const {
+base::string16 ChargerLinkDialog::GetDialogTitle() const {
   return l10n_util::GetStringUTF16(IDS_CHARGER_REPLACEMENT_DIALOG_TITLE);
 }
 
 GURL ChargerLinkDialog::GetDialogContentURL() const {
   return GURL(url_);
 }
 
 void ChargerLinkDialog::GetWebUIMessageHandlers(
     std::vector<WebUIMessageHandler*>* handlers) const {
 }
@@ skipping 20 matching lines @@
   return true;
 }
 
 bool ChargerLinkDialog::HandleContextMenu(
     const content::ContextMenuParams& params) {
   // Disable context menu.
   return true;
 }
 
 }  // namespace chromeos