Plumb direction of document title through IPC layer.

content/browser/renderer_host/render_view_host.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_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_
 #pragma once
 
 #include <string>
 #include <vector>
@@ skipping 510 matching lines @@
                      const gfx::Rect& initial_pos,
                      bool user_gesture);
   void OnMsgShowWidget(int route_id, const gfx::Rect& initial_pos);
   void OnMsgShowFullscreenWidget(int route_id);
   void OnMsgRunModal(IPC::Message* reply_msg);
   void OnMsgRenderViewReady();
   void OnMsgRenderViewGone(int status, int error_code);
   void OnMsgNavigate(const IPC::Message& msg);
   void OnMsgUpdateState(int32 page_id,
                         const std::string& state);
-  void OnMsgUpdateTitle(int32 page_id, const std::wstring& title);
+  void OnMsgUpdateTitle(int32 page_id, const string16& title,
+                        WebKit::WebTextDirection title_direction);
   void OnMsgUpdateEncoding(const std::string& encoding);
   void OnMsgUpdateTargetURL(int32 page_id, const GURL& url);
   void OnMsgScreenshot(const SkBitmap& bitmap);
   void OnMsgClose();
   void OnMsgRequestMove(const gfx::Rect& pos);
   void OnMsgDidStartLoading();
   void OnMsgDidStopLoading();
   void OnMsgDidChangeLoadProgress(double load_progress);
   void OnMsgDocumentAvailableInMainFrame();
   void OnMsgDocumentOnLoadCompletedInMainFrame(int32 page_id);
@@ skipping 146 matching lines @@
   // The enabled/disabled states of various commands.
   std::map<RenderViewCommand, CommandState> command_states_;
 
   // A list of observers that filter messages.  Weak references.
   ObserverList<RenderViewHostObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(RenderViewHost);
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_H_