arc-app-launcher: Minimal support for ARC app launcher.

chrome/browser/ui/app_list/arc_app_prefs_factory.h

Index: chrome/browser/ui/app_list/arc_app_prefs_factory.h
diff --git a/chrome/browser/ui/app_list/arc_app_prefs_factory.h b/chrome/browser/ui/app_list/arc_app_prefs_factory.h
new file mode 100644
index 0000000000000000000000000000000000000000..75706aaeb17b3d9f2f4d265710813f4a1a47b057
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+++ b/chrome/browser/ui/app_list/arc_app_prefs_factory.h
@@ -0,0 +1,31 @@
+// Copyright 2015 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_ARC_APP_PREFS_FACTORY_H_
+#define CHROME_BROWSER_UI_APP_LIST_ARC_APP_PREFS_FACTORY_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/singleton.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+class ArcAppPrefs;
+
+class ArcAppPrefsFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  static ArcAppPrefs* GetForBrowserContext(content::BrowserContext* context);
+
+  static ArcAppPrefsFactory* GetInstance();
+ private:
+  friend struct base::DefaultSingletonTraits<ArcAppPrefsFactory>;
+
+  ArcAppPrefsFactory();
+  ~ArcAppPrefsFactory() override;
+
+  KeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* context) const override;
+  content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const override;
+};
+
+#endif  // CHROME_BROWSER_UI_APP_LIST_ARC_APP_PREFS_FACTORY_H_