Remove some Profile-keyed factory boilerplate: management omnibox preference push_messaging.

chrome/browser/extensions/api/omnibox/omnibox_api_factory.cc

-// Copyright (c) 2012 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/extensions/api/omnibox/omnibox_api_factory.h"
-
-#include "chrome/browser/extensions/api/omnibox/omnibox_api.h"
-#include "chrome/browser/profiles/profile_dependency_manager.h"
-
-namespace extensions {
-
-// static
-OmniboxAPI* OmniboxAPIFactory::GetForProfile(Profile* profile) {
-  return static_cast<OmniboxAPI*>(
-      GetInstance()->GetServiceForProfile(profile, true));
-}
-
-// static
-OmniboxAPIFactory* OmniboxAPIFactory::GetInstance() {
-  return Singleton<OmniboxAPIFactory>::get();
-}
-
-OmniboxAPIFactory::OmniboxAPIFactory()
-    : ProfileKeyedServiceFactory("OmniboxAPI",
-                                 ProfileDependencyManager::GetInstance()) {
-}
-
-OmniboxAPIFactory::~OmniboxAPIFactory() {
-}
-
-ProfileKeyedService* OmniboxAPIFactory::BuildServiceInstanceFor(
-    Profile* profile) const {
-  return new OmniboxAPI(profile);
-}
-
-bool OmniboxAPIFactory::ServiceIsCreatedWithProfile() const {
-  return true;
-}
-
-bool OmniboxAPIFactory::ServiceRedirectedInIncognito() const {
-  return true;
-}
-
-}  // namespace extensions