Add PerAppSettingsService and use it to remember what desktop apps should create windows on.

chrome/browser/apps/per_app_settings_service_factory.cc

Index: chrome/browser/apps/per_app_settings_service_factory.cc
diff --git a/chrome/browser/apps/per_app_settings_service_factory.cc b/chrome/browser/apps/per_app_settings_service_factory.cc
new file mode 100644
index 0000000000000000000000000000000000000000..1bac6b9e565f63ad9d6bb9fe93d20aeaf3d496c0
--- /dev/null
+++ b/chrome/browser/apps/per_app_settings_service_factory.cc
@@ -0,0 +1,46 @@
+// Copyright 2013 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_factory.h"
+
+#include "base/memory/singleton.h"
+#include "chrome/browser/apps/per_app_settings_service.h"
+#include "chrome/browser/profiles/incognito_helpers.h"
+#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
+
+// static
+PerAppSettingsServiceFactory* PerAppSettingsServiceFactory::GetInstance() {
+  return Singleton<PerAppSettingsServiceFactory>::get();
+}
+
+// static
+PerAppSettingsService* PerAppSettingsServiceFactory::GetForBrowserContext(
+    content::BrowserContext* browser_context) {
+  return static_cast<PerAppSettingsService*>(
+      GetInstance()->GetServiceForBrowserContext(
+          browser_context, true /* create */));
+}
+
+PerAppSettingsServiceFactory::PerAppSettingsServiceFactory()
+    : BrowserContextKeyedServiceFactory(
+          "PerAppSettingsServiceFactory",
+          BrowserContextDependencyManager::GetInstance()) {
+}
+
+PerAppSettingsServiceFactory::~PerAppSettingsServiceFactory() {}
+
+BrowserContextKeyedService*
+PerAppSettingsServiceFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  return new PerAppSettingsService;
+}
+
+bool PerAppSettingsServiceFactory::ServiceIsCreatedWithBrowserContext() const {
+  return false;
+}
+
+content::BrowserContext* PerAppSettingsServiceFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  return chrome::GetBrowserContextRedirectedInIncognito(context);
+}