Remove deprecated ExtensionService::GetInstalledExtension() usage

chrome/browser/ui/app_list/extension_uninstaller.cc

 // Copyright 2013 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.
 
 #include "chrome/browser/ui/app_list/extension_uninstaller.h"
 
-#include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/app_list_controller_delegate.h"
-#include "extensions/browser/extension_system.h"
+#include "extensions/browser/extension_registry.h"
 #include "extensions/browser/uninstall_reason.h"
 #include "extensions/common/extension.h"
 
 ExtensionUninstaller::ExtensionUninstaller(
     Profile* profile,
     const std::string& extension_id,
     AppListControllerDelegate* controller)
     : profile_(profile),
       app_id_(extension_id),
       controller_(controller) {
 }
 
 ExtensionUninstaller::~ExtensionUninstaller() {
 }
 
 void ExtensionUninstaller::Run() {
   const extensions::Extension* extension =
-      extensions::ExtensionSystem::Get(profile_)->extension_service()->
-          GetInstalledExtension(app_id_);
+      extensions::ExtensionRegistry::Get(profile_)->GetInstalledExtension(
+          app_id_);
   if (!extension) {
     CleanUp();
     return;
   }
   controller_->OnShowChildDialog();
   dialog_.reset(extensions::ExtensionUninstallDialog::Create(
       profile_, controller_->GetAppListWindow(), this));
   dialog_->ConfirmUninstall(extension,
                             extensions::UNINSTALL_REASON_USER_INITIATED);
 }
 
 void ExtensionUninstaller::OnExtensionUninstallDialogClosed(
     bool did_start_uninstall,
     const base::string16& error) {
   controller_->OnCloseChildDialog();
   CleanUp();
 }
 
 void ExtensionUninstaller::CleanUp() {
   delete this;
 }