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

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 31 matching lines @@
 struct ContextMenuParams;
 struct MediaPlayerAction;
 struct ViewHostMsg_AccessibilityNotification_Params;
 struct ViewHostMsg_CreateWindow_Params;
 struct ViewHostMsg_ShowPopup_Params;
 struct ViewMsg_Navigate_Params;
 struct WebDropData;
 struct WebPreferences;
 struct UserMetricsAction;
 
+namespace base {
+namespace i18n {
+class String16WithDirection;

[darin (slow to review), 2011/04/21 18:03:30]

this forward declaration seems unnecessary since String16WithDirection does not
get mentioned in this header file.

+}
+}
+
 namespace gfx {
 class Point;
 }  // namespace gfx
 
 namespace webkit_glue {
 struct CustomContextMenuContext;
 struct WebAccessibility;
 }  // namespace webkit_glue
 
 namespace WebKit {
@@ skipping 627 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_