Extract chrome.runtime API code from extensions::EventRouter

chrome/browser/extensions/api/runtime/runtime_api_factory.cc

+// 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/extensions/api/runtime/runtime_api_factory.h"
+
+#include "chrome/browser/extensions/api/runtime/runtime_api.h"
+#include "chrome/browser/extensions/extension_system_factory.h"
+#include "chrome/browser/profiles/incognito_helpers.h"
+#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
+
+namespace extensions {
+
+// static
+RuntimeAPI* RuntimeAPIFactory::GetForBrowserContext(
+    content::BrowserContext* context) {
+  return static_cast<RuntimeAPI*>(
+      GetInstance()->GetServiceForBrowserContext(context, true));
+}
+
+// static
+RuntimeAPIFactory* RuntimeAPIFactory::GetInstance() {
+  return Singleton<RuntimeAPIFactory>::get();
+}
+
+RuntimeAPIFactory::RuntimeAPIFactory()
+    : BrowserContextKeyedServiceFactory(
+        "RuntimeAPI",
+        BrowserContextDependencyManager::GetInstance()) {
+  DependsOn(ExtensionSystemFactory::GetInstance());
+}
+
+RuntimeAPIFactory::~RuntimeAPIFactory() {
+}
+
+BrowserContextKeyedService* RuntimeAPIFactory::BuildServiceInstanceFor(
+    content::BrowserContext* context) const {
+  return new RuntimeAPI(context);
+}
+
+content::BrowserContext* RuntimeAPIFactory::GetBrowserContextToUse(
+    content::BrowserContext* context) const {
+  // Instance is shared between incognito and regular profiles.
+  return chrome::GetBrowserContextRedirectedInIncognito(context);
+}
+
+bool RuntimeAPIFactory::ServiceIsCreatedWithBrowserContext() const {
+  return true;
+}
+
+bool RuntimeAPIFactory::ServiceIsNULLWhileTesting() const {
+  return true;
+}
+
+}  // namespace extensions