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

content/browser/tab_contents/navigation_controller.h

Index: content/browser/tab_contents/navigation_controller.h
===================================================================
--- content/browser/tab_contents/navigation_controller.h	(revision 98807)
+++ content/browser/tab_contents/navigation_controller.h	(working copy)
@@ -167,6 +167,11 @@
   void LoadURL(const GURL& url, const GURL& referrer,

[sky, 2011/08/30 17:05:25]

Nuke this one in favor of new. I'm fine with doing that in a separate pass
(assuming you'll do it), just add a TODO here.

[Roger Tawa OOO till Jul 10th, 2011/08/30 18:58:32]

I'll do it as part of this CL.  It will create a lot of one line changes in lots
of places though.  Will upload the change shortly.

                PageTransition::Type type);
 
+  // Loads the specified URL, specifying extra http headers to add to the
+  // request.  Extra headers are separated by \n.
+  void LoadURLWithHeaders(const GURL& url, const GURL& referrer,

[sky, 2011/08/30 17:05:25]

each param on its own line.

[Roger Tawa OOO till Jul 10th, 2011/08/30 18:58:32]

Done.

+      PageTransition::Type type, const std::string& extra_headers);
+
   // Loads the current page if this NavigationController was restored from
   // history and the current page has not loaded yet.
   void LoadIfNecessary();
@@ -318,11 +323,13 @@
   bool IsInitialNavigation();
 
   // Creates navigation entry and translates the virtual url to a real one.
-  // Used when navigating to a new URL using LoadURL.
+  // Used when navigating to a new URL using LoadURL.  Extra headers are
+  // separated by \n.
   static NavigationEntry* CreateNavigationEntry(
       const GURL& url,
       const GURL& referrer,
       PageTransition::Type transition,
+      const std::string& extra_headers,
       content::BrowserContext* browser_context);
 
  private: