Plumb direction of document title through IPC layer.

content/browser/renderer_host/render_view_host_delegate.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_DELEGATE_H_
 #define CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_
 #pragma once
 
 #include <string>
 #include <vector>
 
 #include "base/basictypes.h"
 #include "base/memory/ref_counted.h"
 #include "base/process_util.h"
 #include "base/string16.h"
 #include "chrome/common/content_settings_types.h"
 #include "chrome/common/translate_errors.h"
 #include "chrome/common/view_types.h"
 #include "content/common/dom_storage_common.h"
 #include "content/common/window_container_type.h"
 #include "ipc/ipc_channel.h"
 #include "net/base/load_states.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebDragOperation.h"
 #include "third_party/WebKit/Source/WebKit/chromium/public/WebPopupType.h"
+#include "third_party/WebKit/Source/WebKit/chromium/public/WebTextDirection.h"
 #include "webkit/glue/window_open_disposition.h"
 
 
 class AutomationResourceRoutingDelegate;
 class BackgroundContents;
 struct BookmarkNodeData;
 class BookmarkNode;
 struct ContextMenuParams;
 class FilePath;
 class GURL;
@@ skipping 394 matching lines @@
                            const ViewHostMsg_FrameNavigate_Params& params) {}
 
   // The state for the page changed and should be updated.
   virtual void UpdateState(RenderViewHost* render_view_host,
                            int32 page_id,
                            const std::string& state) {}
 
   // The page's title was changed and should be updated.
   virtual void UpdateTitle(RenderViewHost* render_view_host,
                            int32 page_id,
-                           const std::wstring& title) {}
+                           const string16& title,
+                           WebKit::WebTextDirection title_direction) {}
 
   // The page's encoding was changed and should be updated.
   virtual void UpdateEncoding(RenderViewHost* render_view_host,
                               const std::string& encoding) {}
 
   // The destination URL has changed should be updated
   virtual void UpdateTargetURL(int32 page_id, const GURL& url) {}
 
   // Inspector setting was changed and should be persisted.
   virtual void UpdateInspectorSetting(const std::string& key,
@@ skipping 121 matching lines @@
   // Returns true if the delegate will take care of asking the user, otherwise
   // the caller will do the default behavior.
   bool RequestDesktopNotificationPermission(const GURL& source_origin,
                                             int callback_context);
 
  protected:
   virtual ~RenderViewHostDelegate() {}
 };
 
 #endif  // CONTENT_BROWSER_RENDERER_HOST_RENDER_VIEW_HOST_DELEGATE_H_