Lazy initialization for ProcessesEventRouter.

chrome/browser/extensions/api/processes/processes_api_factory.h

+// Copyright (c) 2012 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_API_PROCESSES_PROCESSES_API_FACTORY_H__
+#define CHROME_BROWSER_EXTENSIONS_API_PROCESSES_PROCESSES_API_FACTORY_H__
+
+#include "base/memory/singleton.h"
+#include "chrome/browser/profiles/profile_keyed_service_factory.h"
+
+namespace extensions {
+class ProcessesAPI;
+
+class ProcessesAPIFactory : public ProfileKeyedServiceFactory {
+ public:
+  static ProcessesAPI* GetForProfile(Profile* profile);
+
+  static ProcessesAPIFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<ProcessesAPIFactory>;
+
+  ProcessesAPIFactory();
+  virtual ~ProcessesAPIFactory();
+
+  // ProfileKeyedBaseFactory implementation.
+  virtual ProfileKeyedService* BuildServiceInstanceFor(
+      Profile* profile) const OVERRIDE;
+  virtual bool ServiceRedirectedInIncognito() const OVERRIDE;
+  virtual bool ServiceIsCreatedWithProfile() const OVERRIDE;
+  virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
+};
+
+}  // namespace extensions
+
+#endif  // CHROME_BROWSER_EXTENSIONS_API_PROCESSES_PROCESSES_API_FACTORY_H__