Reland of AppListController refactoring part 2: Ash's AppListShowerDelegate imlementation.

ash/app_list/app_list_shower_delegate_factory.h

Index: ash/app_list/app_list_shower_delegate_factory.h
diff --git a/ash/app_list/app_list_shower_delegate_factory.h b/ash/app_list/app_list_shower_delegate_factory.h
new file mode 100644
index 0000000000000000000000000000000000000000..67ee0aaea1dca2680ce463de7f621e8f107abd3f
--- /dev/null
+++ b/ash/app_list/app_list_shower_delegate_factory.h
@@ -0,0 +1,40 @@
+// Copyright 2016 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 ASH_APP_LIST_APP_LIST_SHOWER_DELEGATE_FACTORY_H_
+#define ASH_APP_LIST_APP_LIST_SHOWER_DELEGATE_FACTORY_H_
+
+#include <memory>
+
+#include "ash/ash_export.h"
+#include "base/macros.h"
+#include "ui/app_list/shower/app_list_shower_delegate_factory.h"
+
+namespace app_list {
+class AppListShower;
+}
+
+namespace ash {
+
+class AppListViewDelegateFactory;
+
+class ASH_EXPORT AppListShowerDelegateFactory
+    : public app_list::AppListShowerDelegateFactory {
+ public:
+  explicit AppListShowerDelegateFactory(
+      std::unique_ptr<AppListViewDelegateFactory> view_delegate_factory);
+  ~AppListShowerDelegateFactory() override;
+
+  std::unique_ptr<app_list::AppListShowerDelegate> GetDelegate(
+      app_list::AppListShower* shower) override;
+
+ private:
+  std::unique_ptr<AppListViewDelegateFactory> view_delegate_factory_;
+
+  DISALLOW_COPY_AND_ASSIGN(AppListShowerDelegateFactory);
+};
+
+}  // namespace ash
+
+#endif  // ASH_APP_LIST_APP_LIST_SHOWER_DELEGATE_FACTORY_H_