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

content/browser/tab_contents/navigation_entry.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_TAB_CONTENTS_NAVIGATION_ENTRY_H_
 #define CONTENT_BROWSER_TAB_CONTENTS_NAVIGATION_ENTRY_H_
 #pragma once
 
 #include <string>
 
@@ skipping 300 matching lines @@
   }
 
   // All the SSL flags and state. See SSLStatus above.
   const SSLStatus& ssl() const {
     return ssl_;
   }
   SSLStatus& ssl() {
     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
   // the page if it is available or the URL. |languages| is the list of
   // accpeted languages (e.g., prefs::kAcceptLanguages) or empty if proper
   // URL formatting isn't needed (e.g., unit tests).
   const string16& GetTitleForDisplay(const std::string& languages) const;
 
   // Returns true if the current tab is in view source mode. This will be false
   // if there is no navigation.
@@ skipping 59 matching lines @@
   }
   RestoreType restore_type() const {
     return restore_type_;
   }
 
  private:
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING
   // Session/Tab restore save portions of this class so that it can be recreated
   // later. If you add a new field that needs to be persisted you'll have to
   // update SessionService/TabRestoreService appropriately.
   // WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING WARNING

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

I think you need to update session restore to deal with the extra headers.

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

Done.  Please take a close look though.

 
   // See the accessors above for descriptions.
   int unique_id_;
   scoped_refptr<SiteInstance> site_instance_;
   PageType page_type_;
   GURL url_;
   GURL referrer_;
   GURL virtual_url_;
   bool update_virtual_url_with_url_;
   string16 title_;
   FaviconStatus favicon_;
   std::string content_state_;
   int32 page_id_;
   SSLStatus ssl_;
   PageTransition::Type transition_type_;
   GURL user_typed_url_;
   bool has_post_data_;
   RestoreType restore_type_;
+  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_;
 
   // Copy and assignment is explicitly allowed for this class.
 };
 
 #endif  // CONTENT_BROWSER_TAB_CONTENTS_NAVIGATION_ENTRY_H_