Change NavigationEntry's title fields to carry the text direction.

content/browser/tab_contents/tab_contents.h

Index: content/browser/tab_contents/tab_contents.h
diff --git a/content/browser/tab_contents/tab_contents.h b/content/browser/tab_contents/tab_contents.h
index fe70195f71435833e539e330584e356227cf596b..43e3f6ee340cc906e443cd48344d04c8d33611dc 100644
--- a/content/browser/tab_contents/tab_contents.h
+++ b/content/browser/tab_contents/tab_contents.h
@@ -773,7 +773,8 @@ class TabContents : public PageNavigator,
   // This is used as the backend for state updates, which include a new title,
   // or the dedicated set title message. It returns true if the new title is
   // different and was therefore updated.
-  bool UpdateTitleForEntry(NavigationEntry* entry, const std::wstring& title);
+  bool UpdateTitleForEntry(NavigationEntry* entry,
+                           const base::i18n::String16WithDirection& title);
 
   // Causes the TabContents to navigate in the right renderer to |entry|, which
   // must be already part of the entries in the navigation controller.