Revert 124817 - Take extensions out of Profile into a profile-keyed service, ExtensionSystem.

chrome/browser/sync/glue/extension_data_type_controller.cc

Index: chrome/browser/sync/glue/extension_data_type_controller.cc
===================================================================
--- chrome/browser/sync/glue/extension_data_type_controller.cc	(revision 124830)
+++ chrome/browser/sync/glue/extension_data_type_controller.cc	(working copy)
@@ -5,8 +5,6 @@
 #include "chrome/browser/sync/glue/extension_data_type_controller.h"
 
 #include "base/metrics/histogram.h"
-#include "chrome/browser/extensions/extension_system.h"
-#include "chrome/browser/extensions/extension_system_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/sync/profile_sync_components_factory.h"
 
@@ -33,7 +31,7 @@
 }
 
 bool ExtensionDataTypeController::StartModels() {
-  ExtensionSystemFactory::GetForProfile(profile_)->Init(true);
+  profile_->InitExtensions(true);
   return true;
 }