Add and use a base::i18n::StringWithDirection for carrying titles.

content/browser/tab_contents/interstitial_page.h

 // 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.
 
 #ifndef CONTENT_BROWSER_TAB_CONTENTS_INTERSTITIAL_PAGE_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_INTERSTITIAL_PAGE_H_
 #pragma once
 
 #include <map>
 #include <string>
@@ skipping 110 matching lines @@
                        const NotificationDetails& details);
 
   // RenderViewHostDelegate implementation:
   virtual View* GetViewDelegate();
   virtual const GURL& GetURL() const;
   virtual void RenderViewGone(RenderViewHost* render_view_host,
                               base::TerminationStatus status,
                               int error_code);
   virtual void DidNavigate(RenderViewHost* render_view_host,
                            const ViewHostMsg_FrameNavigate_Params& params);
-  virtual void UpdateTitle(RenderViewHost* render_view_host,
-                           int32 page_id,
-                           const string16& title,
-                           WebKit::WebTextDirection title_direction) OVERRIDE;
+  virtual void UpdateTitle(
+      RenderViewHost* render_view_host,
+      int32 page_id,
+      const base::i18n::String16WithDirection& title) OVERRIDE;
   virtual void DomOperationResponse(const std::string& json_string,
                                     int automation_id);
   virtual RendererPreferences GetRendererPrefs(Profile* profile) const;
 
   // Invoked when the page sent a command through DOMAutomation.
   virtual void CommandReceived(const std::string& command) {}
 
   // Invoked with the NavigationEntry that is going to be added to the
   // navigation controller.
   // Gives an opportunity to sub-classes to set states on the |entry|.
@@ skipping 92 matching lines @@
   typedef std::map<TabContents*, InterstitialPage*> InterstitialPageMap;
   static InterstitialPageMap* tab_to_interstitial_page_;
 
   // Settings passed to the renderer.
   RendererPreferences renderer_preferences_;
 
   DISALLOW_COPY_AND_ASSIGN(InterstitialPage);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_INTERSTITIAL_PAGE_H_