ExtensionSystem cleanup part 2

apps/shell/browser/shell_extension_system.cc

Index: apps/shell/browser/shell_extension_system.cc
diff --git a/apps/shell/browser/shell_extension_system.cc b/apps/shell/browser/shell_extension_system.cc
index 324368fa76c7681a133da40b0223391447accf41..549931abc800b0f0f8919bd0f362cd1a8b532917 100644
--- a/apps/shell/browser/shell_extension_system.cc
+++ b/apps/shell/browser/shell_extension_system.cc
@@ -17,9 +17,7 @@
 #include "content/public/browser/notification_source.h"
 #include "extensions/browser/event_router.h"
 #include "extensions/browser/extension_prefs.h"
-#include "extensions/browser/extension_prefs_factory.h"
 #include "extensions/browser/extension_registry.h"
-#include "extensions/browser/extension_registry_factory.h"
 #include "extensions/browser/info_map.h"
 #include "extensions/browser/lazy_background_task_queue.h"
 #include "extensions/browser/process_manager.h"
@@ -38,15 +36,6 @@ ShellExtensionSystem::ShellExtensionSystem(BrowserContext* browser_context)
 ShellExtensionSystem::~ShellExtensionSystem() {
 }
 
-// static
-std::vector<BrowserContextKeyedServiceFactory*>
-ShellExtensionSystem::GetDependencies() {
-  std::vector<BrowserContextKeyedServiceFactory*> depends_on;
-  depends_on.push_back(ExtensionPrefsFactory::GetInstance());
-  depends_on.push_back(ExtensionRegistryFactory::GetInstance());
-  return depends_on;
-}
-
 bool ShellExtensionSystem::LoadAndLaunchApp(const base::FilePath& app_dir) {
   std::string load_error;
   scoped_refptr<Extension> extension =