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

chrome/browser/rlz/rlz.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.
 //
 // This code glues the RLZ library DLL with Chrome. It allows Chrome to work
 // with or without the DLL being present. If the DLL is not present the
 // functions do nothing and just return false.
 
 #include "chrome/browser/rlz/rlz.h"
 
@@ skipping 178 matching lines @@
   // typing in the omnibox (which triggers INSTANT_CONTROLLER_UPDATED).
   registrar_.Add(this, chrome::NOTIFICATION_INSTANT_CONTROLLER_UPDATED,
                  NotificationService::AllSources());
 
   // Register for notifications from navigations, to see if the user has used
   // the home page.
   registrar_.Add(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
                  NotificationService::AllSources());
 
   ScheduleDelayedInit(delay);
+
   return true;
 }
 
 void RLZTracker::ScheduleDelayedInit(int delay) {
   BrowserThread::PostDelayedTask(
       BrowserThread::FILE,
       FROM_HERE,
       NewRunnableMethod(this, &RLZTracker::DelayedInit),
       delay);
 }
@@ skipping 79 matching lines @@
       call_record = true;
 
       registrar_.Remove(this, chrome::NOTIFICATION_OMNIBOX_OPENED_URL,
                         NotificationService::AllSources());
       registrar_.Remove(this, chrome::NOTIFICATION_INSTANT_CONTROLLER_UPDATED,
                         NotificationService::AllSources());
       break;
     case content::NOTIFICATION_NAV_ENTRY_PENDING: {
       const NavigationEntry* entry = Details<NavigationEntry>(details).ptr();
       if (entry != NULL &&
-          ((entry->transition_type() & RLZ_PAGETRANSITION_HOME_PAGE) != 0)) {
+          ((entry->transition_type() & PageTransition::HOME_PAGE) != 0)) {
         point = rlz_lib::CHROME_HOME_PAGE;
         record_used = &homepage_used_;
         call_record = true;
 
         registrar_.Remove(this, content::NOTIFICATION_NAV_ENTRY_PENDING,
                           NotificationService::AllSources());
       }
       break;
     }
     default:
@@ skipping 76 matching lines @@
       BrowserThread::FILE, FROM_HERE,
       NewRunnableFunction(&RLZTracker::GetAccessPointRlz, point, not_used));
   return true;
 }
 
 // static
 void RLZTracker::CleanupRlz() {
   GetInstance()->rlz_cache_.clear();
   GetInstance()->registrar_.RemoveAll();
 }