Create services/gcm directory and add some initial files

chrome/browser/services/gcm/gcm_profile_service_factory.h

+// Copyright (c) 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.
+
+#ifndef CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_FACTORY_H_
+#define CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_FACTORY_H_
+
+#include "base/compiler_specific.h"
+#include "base/memory/singleton.h"
+#include "components/browser_context_keyed_service/browser_context_keyed_service_factory.h"
+
+class Profile;
+
+namespace gcm {
+
+class GCMProfileService;
+
+// Singleton that owns all GCMProfileService and associates them with
+// Profiles. Listens for the Profile's destruction notification and cleans up
+// the associated GCMProfileService.
+class GCMProfileServiceFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  static GCMProfileService* GetForProfile(Profile* profile);
+  static GCMProfileServiceFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<GCMProfileServiceFactory>;
+
+  GCMProfileServiceFactory();
+  virtual ~GCMProfileServiceFactory();
+
+  // BrowserContextKeyedServiceFactory:
+  virtual BrowserContextKeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* profile) const OVERRIDE;
+  virtual content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(GCMProfileServiceFactory);
+};
+
+}  // namespace gcm
+
+#endif  // CHROME_BROWSER_SERVICES_GCM_GCM_PROFILE_SERVICE_FACTORY_H_