Fine tuned availability of hotword plugin.

chrome/browser/ui/app_list/start_page_service_factory.h

Index: chrome/browser/ui/app_list/start_page_service_factory.h
diff --git a/chrome/browser/ui/app_list/start_page_service_factory.h b/chrome/browser/ui/app_list/start_page_service_factory.h
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+// 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_UI_APP_LIST_START_PAGE_SERVICE_FACTORY_H_
+#define CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_FACTORY_H_
+
+#include "base/memory/singleton.h"
+#include "components/browser_context_keyed_service/browser_context_keyed_service_factory.h"
+
+class Profile;
+
+namespace app_list {
+class StartPageService;
+
+// Singleton factory to create StartPageService.
+class StartPageServiceFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  // Gets or creates the instance of StartPageService for |profile|.
+  static StartPageService* GetForProfile(Profile* profile);
+
+  // Gets the singleton instance of this factory.
+  static StartPageServiceFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<StartPageServiceFactory>;
+
+  StartPageServiceFactory();
+  virtual ~StartPageServiceFactory();
+
+  // BrowserContextKeyedServiceFactory overrides:
+  virtual BrowserContextKeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* context) const OVERRIDE;
+  virtual void RegisterProfilePrefs(
+      user_prefs::PrefRegistrySyncable* registry) OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(StartPageServiceFactory);
+};
+
+}  // namespace app_list
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_START_PAGE_SERVICE_FACTORY_H_