Plumb direction of document title through IPC layer.

content/browser/tab_contents/tab_contents.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_TAB_CONTENTS_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_
 #pragma once
 
 #include <deque>
 #include <map>
@@ skipping 799 matching lines @@
                               base::TerminationStatus status,
                               int error_code);
   virtual void RenderViewDeleted(RenderViewHost* render_view_host);
   virtual void DidNavigate(RenderViewHost* render_view_host,
                            const ViewHostMsg_FrameNavigate_Params& params);
   virtual void UpdateState(RenderViewHost* render_view_host,
                            int32 page_id,
                            const std::string& state);
   virtual void UpdateTitle(RenderViewHost* render_view_host,
                            int32 page_id,
-                           const std::wstring& title);
+                           const string16& title,
+                           WebKit::WebTextDirection title_direction) OVERRIDE;
   virtual void UpdateEncoding(RenderViewHost* render_view_host,
                               const std::string& encoding);
   virtual void UpdateTargetURL(int32 page_id, const GURL& url);
   virtual void UpdateInspectorSetting(const std::string& key,
                                       const std::string& value);
   virtual void ClearInspectorSettings();
   virtual void Close(RenderViewHost* render_view_host);
   virtual void RequestMove(const gfx::Rect& new_bounds);
   virtual void DidStartLoading();
   virtual void DidStopLoading();
@@ skipping 262 matching lines @@
   ObserverList<TabContentsObserver> observers_;
 
   // Content restrictions, used to disable print/copy etc based on content's
   // (full-page plugins for now only) permissions.
   int content_restrictions_;
 
   DISALLOW_COPY_AND_ASSIGN(TabContents);
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_TAB_CONTENTS_H_