Remove a bunch of GetProfileSyncService callers to use the new factory.

chrome/browser/ui/webui/ntp/foreign_session_handler.cc

Index: chrome/browser/ui/webui/ntp/foreign_session_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/foreign_session_handler.cc b/chrome/browser/ui/webui/ntp/foreign_session_handler.cc
index daa8a8d2a134941ba404eae124c8000c4961258e..7fc8a7c3deab198109539f4ed4ab56925a5a8f20 100644
--- a/chrome/browser/ui/webui/ntp/foreign_session_handler.cc
+++ b/chrome/browser/ui/webui/ntp/foreign_session_handler.cc
@@ -16,6 +16,7 @@
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sessions/session_restore.h"
 #include "chrome/browser/sync/profile_sync_service.h"
+#include "chrome/browser/sync/profile_sync_service_factory.h"
 #include "chrome/browser/ui/webui/ntp/new_tab_ui.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/url_constants.h"
@@ -74,8 +75,8 @@ void ForeignSessionHandler::Observe(
 }
 
 SessionModelAssociator* ForeignSessionHandler::GetModelAssociator() {
-  ProfileSyncService* service =
-      Profile::FromWebUI(web_ui())->GetProfileSyncService();
+  ProfileSyncService* service(ProfileSyncServiceFactory::
+      GetInstance()->GetForProfile(Profile::FromWebUI(web_ui())));
   if (service == NULL)
     return NULL;