Add support for child accounts.

chrome/browser/supervised_user/child_accounts/child_account_service_factory.h

+// Copyright 2014 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_SUPERVISED_USER_CHILD_ACCOUNTS_CHILD_ACCOUNT_SERVICE_FACTORY_H_
+#define CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_CHILD_ACCOUNT_SERVICE_FACTORY_H_
+
+#include "base/macros.h"
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+class ChildAccountService;
+class Profile;
+
+class ChildAccountServiceFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  static ChildAccountService* GetForProfile(Profile* profile);
+
+  static ChildAccountServiceFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<ChildAccountServiceFactory>;
+
+  ChildAccountServiceFactory();
+  virtual ~ChildAccountServiceFactory();
+
+  // BrowserContextKeyedServiceFactory:
+  virtual KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* profile) const override;
+
+  DISALLOW_COPY_AND_ASSIGN(ChildAccountServiceFactory);
+};
+
+#endif  // CHROME_BROWSER_SUPERVISED_USER_CHILD_ACCOUNTS_CHILD_ACCOUNT_SERVICE_FACTORY_H_