This fixes http://code.google.com/p/chromium/issues/detail?id=2529, which is...

chrome/browser/navigation_entry.h

Index: chrome/browser/navigation_entry.h
===================================================================
--- chrome/browser/navigation_entry.h	(revision 3749)
+++ chrome/browser/navigation_entry.h	(working copy)
@@ -219,6 +219,7 @@
   // the user.
   void set_url(const GURL& url) {
     url_ = url;
+    url_as_string_ = UTF8ToWide(url_.spec());
   }
   const GURL& url() const {
     return url_;
@@ -344,6 +345,10 @@
     return restored_;
   }
 
+  // Returns the title to be displayed on the tab. This could be the title of
+  // the page if it is available or the URL.
+  const std::wstring& GetTitleForDisplay();
+
  private:
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
   // Session/Tab restore save portions of this class so that it can be recreated
@@ -357,6 +362,7 @@
   scoped_refptr<SiteInstance> site_instance_;
   PageType page_type_;
   GURL url_;
+  std::wstring url_as_string_;
   GURL display_url_;
   std::wstring title_;
   FaviconStatus favicon_;