Creating the NTP snippet service.

ios/chrome/browser/ntp_content/ntp_content_service_factory.cc

+// Copyright 2015 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 "ios/chrome/browser/ntp_content/ntp_content_service_factory.h"
+
+#include "base/logging.h"
+#include "base/memory/singleton.h"
+#include "components/keyed_service/ios/browser_state_dependency_manager.h"
+#include "components/ntp_content/ntp_content_service.h"
+#include "ios/chrome/browser/application_context.h"
+#include "ios/chrome/browser/browser_state/browser_state_otr_helper.h"
+#include "ios/public/provider/chrome/browser/browser_state/chrome_browser_state.h"
+
+namespace ntp_content {
+
+// static
+NTPContentServiceFactory* NTPContentServiceFactory::GetInstance() {
+  return base::Singleton<NTPContentServiceFactory>::get();
+}
+
+// static
+NTPContentService* NTPContentServiceFactory::GetForBrowserState(
+    ios::ChromeBrowserState* browser_state) {
+  return static_cast<NTPContentService*>(
+      GetInstance()->GetServiceForBrowserState(browser_state, true));
+}
+
+NTPContentServiceFactory::NTPContentServiceFactory()
+    : BrowserStateKeyedServiceFactory(
+          "NTPContentService",
+          BrowserStateDependencyManager::GetInstance()) {}
+
+NTPContentServiceFactory::~NTPContentServiceFactory() {}
+
+scoped_ptr<KeyedService> NTPContentServiceFactory::BuildServiceInstanceFor(
+    web::BrowserState* browser_state) const {
+  DCHECK(!browser_state->IsOffTheRecord());
+  return make_scoped_ptr(
+      new NTPContentService(GetApplicationContext()->GetApplicationLocale()));
+}
+
+web::BrowserState* NTPContentServiceFactory::GetBrowserStateToUse(
+    web::BrowserState* context) const {
+  return GetBrowserStateRedirectedInIncognito(context);
+}
+
+}  // namespace ntp_content