Remove PerAppSettingsService

chrome/browser/apps/per_app_settings_service.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 "chrome/browser/apps/per_app_settings_service.h"
-
-PerAppSettingsService::PerAppSettingsService() {
-}
-
-PerAppSettingsService::~PerAppSettingsService() {
-}
-
-void PerAppSettingsService::SetDesktopLastLaunchedFrom(
-    const std::string& app_id, chrome::HostDesktopType host_desktop) {
-  default_desktops_[app_id] = host_desktop;
-}
-
-chrome::HostDesktopType PerAppSettingsService::GetDesktopLastLaunchedFrom(
-    const std::string& app_id) const {
-  DesktopMap::const_iterator it = default_desktops_.find(app_id);
-  if (it == default_desktops_.end())
-    NOTREACHED();
-  return it->second;
-}
-
-bool PerAppSettingsService::HasDesktopLastLaunchedFrom(
-    const std::string& app_id) const {
-  return default_desktops_.find(app_id) != default_desktops_.end();
-}