Remove dangling files and clean up gyp.

chrome/browser/background/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/background_mode_manager_factory.h"
-
-#include "base/command_line.h"
-#include "chrome/browser/background/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, true));
-}
-
-// 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());
-}