Add ExtensionSytem::Get(Profile*) as a wrapper around

chrome/browser/sync/test/integration/sync_extension_helper.cc

Index: chrome/browser/sync/test/integration/sync_extension_helper.cc
diff --git a/chrome/browser/sync/test/integration/sync_extension_helper.cc b/chrome/browser/sync/test/integration/sync_extension_helper.cc
index d3e3a3ef41cef2aab53c68aaafa568abc6aaa829..f1d8b777eb3745397cfa75b26712d00981710d65 100644
--- a/chrome/browser/sync/test/integration/sync_extension_helper.cc
+++ b/chrome/browser/sync/test/integration/sync_extension_helper.cc
@@ -10,7 +10,6 @@
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/extension_system.h"
-#include "chrome/browser/extensions/extension_system_factory.h"
 #include "chrome/browser/extensions/pending_extension_info.h"
 #include "chrome/browser/extensions/pending_extension_manager.h"
 #include "chrome/browser/profiles/profile.h"
@@ -241,7 +240,7 @@ bool SyncExtensionHelper::ExtensionStatesMatch(
 }
 
 void SyncExtensionHelper::SetupProfile(Profile* profile) {
-  ExtensionSystemFactory::GetForProfile(profile)->Init(true);
+  ExtensionSystem::Get(profile)->Init(true);
   profile_extensions_.insert(make_pair(profile, ExtensionNameMap()));
 }