Profile shouldn't own background page stuff.

chrome/browser/background_mode_manager_factory.cc

+// Copyright (c) 2011 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/background_mode_manager_factory.h"
+
+#include "base/command_line.h"
+#include "chrome/browser/background_mode_manager.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_dependency_manager.h"
+
+// static
+BackgroundModeManager* BackgroundModeManagerFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<BackgroundModeManager*>(
+      GetInstance()->GetServiceForProfile(profile));
+}
+
+// static
+BackgroundModeManagerFactory* BackgroundModeManagerFactory::GetInstance() {
+  return Singleton<BackgroundModeManagerFactory>::get();
+}
+
+BackgroundModeManagerFactory::BackgroundModeManagerFactory()
+    : ProfileKeyedServiceFactory(ProfileDependencyManager::GetInstance()) {
+}
+
+BackgroundModeManagerFactory::~BackgroundModeManagerFactory() {
+}
+
+ProfileKeyedService* BackgroundModeManagerFactory::BuildServiceInstanceFor(
+    Profile* profile) const {
+  return new BackgroundModeManager(profile, CommandLine::ForCurrentProcess());
+}