Move apps/shell to extensions/shell.

apps/shell/browser/shell_extension_system_factory.cc

-// Copyright 2014 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 "apps/shell/browser/shell_extension_system_factory.h"
-
-#include "apps/shell/browser/shell_extension_system.h"
-#include "components/keyed_service/content/browser_context_dependency_manager.h"
-#include "extensions/browser/extension_prefs_factory.h"
-#include "extensions/browser/extension_registry_factory.h"
-
-using content::BrowserContext;
-
-namespace extensions {
-
-ExtensionSystem* ShellExtensionSystemFactory::GetForBrowserContext(
-    BrowserContext* context) {
-  return static_cast<ShellExtensionSystem*>(
-      GetInstance()->GetServiceForBrowserContext(context, true));
-}
-
-// static
-ShellExtensionSystemFactory* ShellExtensionSystemFactory::GetInstance() {
-  return Singleton<ShellExtensionSystemFactory>::get();
-}
-
-ShellExtensionSystemFactory::ShellExtensionSystemFactory()
-    : ExtensionSystemProvider("ShellExtensionSystem",
-                              BrowserContextDependencyManager::GetInstance()) {
-  DependsOn(ExtensionPrefsFactory::GetInstance());
-  DependsOn(ExtensionRegistryFactory::GetInstance());
-}
-
-ShellExtensionSystemFactory::~ShellExtensionSystemFactory() {}
-
-KeyedService* ShellExtensionSystemFactory::BuildServiceInstanceFor(
-    BrowserContext* context) const {
-  return new ShellExtensionSystem(context);
-}
-
-BrowserContext* ShellExtensionSystemFactory::GetBrowserContextToUse(
-    BrowserContext* context) const {
-  // Use a separate instance for incognito.
-  return context;
-}
-
-bool ShellExtensionSystemFactory::ServiceIsCreatedWithBrowserContext() const {
-  return true;
-}
-
-}  // namespace extensions