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

content/browser/tab_contents/tab_contents.cc

 // 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.
 
 #include "content/browser/tab_contents/tab_contents.h"
 
 #include <cmath>
 
 #include "base/command_line.h"
 #include "base/metrics/histogram.h"
@@ skipping 123 matching lines @@
 
   if (entry.restore_type() == NavigationEntry::RESTORE_LAST_SESSION &&
       browser_context->DidLastSessionExitCleanly())
     return ViewMsg_Navigate_Type::RESTORE;
 
   return ViewMsg_Navigate_Type::NORMAL;
 }
 
 void MakeNavigateParams(const NavigationEntry& entry,
                         const NavigationController& controller,
+                        TabContentsDelegate* delegate,
                         NavigationController::ReloadType reload_type,
                         ViewMsg_Navigate_Params* params) {
   params->page_id = entry.page_id();
   params->pending_history_list_offset = controller.GetIndexOfEntry(&entry);
   params->current_history_list_offset = controller.last_committed_entry_index();
   params->current_history_list_length = controller.entry_count();
   params->url = entry.url();
   params->referrer = entry.referrer();
   params->transition = entry.transition_type();
   params->state = entry.content_state();
   params->navigation_type =
       GetNavigationType(controller.browser_context(), entry, reload_type);
   params->request_time = base::Time::Now();
+  params->extra_headers = entry.extra_headers();
+
+  if (delegate)
+    params->extra_headers += delegate->GetNavigationHeaders(params->url);

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

Is concatanating the strings going to do the right thing? Maybe
GetNavigationHeaders should take the proposed headers and return the resulting
headers.

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

Good catch.  Done.

 }
 
 }  // namespace
 
 
 // TabContents ----------------------------------------------------------------
 
 TabContents::TabContents(content::BrowserContext* browser_context,
                          SiteInstance* site_instance,
                          int routing_id,
@@ skipping 413 matching lines @@
     devtools_manager->OnNavigatingToPendingEntry(render_view_host(),
                                                  dest_render_view_host,
                                                  entry.url());
   }
 
   // Used for page load time metrics.
   current_load_start_ = base::TimeTicks::Now();
 
   // Navigate in the desired RenderViewHost.
   ViewMsg_Navigate_Params navigate_params;
-  MakeNavigateParams(entry, controller_, reload_type, &navigate_params);
-  if (delegate_) {
-    navigate_params.extra_headers =
-        delegate_->GetNavigationHeaders(navigate_params.url);
-  }
+  MakeNavigateParams(entry, controller_, delegate_, reload_type,
+                     &navigate_params);
   dest_render_view_host->Navigate(navigate_params);
 
   if (entry.page_id() == -1) {
     // HACK!!  This code suppresses javascript: URLs from being added to
     // session history, which is what we want to do for javascript: URLs that
     // do not generate content.  What we really need is a message from the
     // renderer telling us that a new page was not created.  The same message
     // could be used for mailto: URLs and the like.
     if (entry.url().SchemeIs(chrome::kJavaScriptScheme))
       return false;
@@ skipping 1378 matching lines @@
 }
 
 void TabContents::SwapInRenderViewHost(RenderViewHost* rvh) {
   render_manager_.SwapInRenderViewHost(rvh);
 }
 
 void TabContents::CreateViewAndSetSizeForRVH(RenderViewHost* rvh) {
   RenderWidgetHostView* rwh_view = view()->CreateViewForWidget(rvh);
   rwh_view->SetSize(view()->GetContainerSize());
 }