When the user navigates to the home page, make sure to set the RLZ string

content/browser/tab_contents/navigation_entry.h

Index: content/browser/tab_contents/navigation_entry.h
===================================================================
--- content/browser/tab_contents/navigation_entry.h	(revision 99286)
+++ content/browser/tab_contents/navigation_entry.h	(working copy)
@@ -318,6 +318,14 @@
     return ssl_;
   }
 
+  // Extra headers (separated by \n) to send during the request.
+  void set_extra_headers(const std::string& extra_headers) {
+    extra_headers_ = extra_headers;
+  }
+  const std::string& extra_headers() const {
+    return extra_headers_;
+  }
+
   // Page-related helpers ------------------------------------------------------
 
   // Returns the title to be displayed on the tab. This could be the title of
@@ -417,8 +425,11 @@
   bool has_post_data_;
   RestoreType restore_type_;
 
+  // This member is not persisted with sesssion restore.
+  std::string extra_headers_;
+
   // This is a cached version of the result of GetTitleForDisplay. It prevents
-  // us from having to do URL formatting on the URL evey time the title is
+  // us from having to do URL formatting on the URL every time the title is
   // displayed. When the URL, virtual URL, or title is set, this should be
   // cleared to force a refresh.
   mutable string16 cached_display_title_;