app_list: Add search box and search result view for v2.

ui/app_list/view_ids.h

Index: ui/app_list/view_ids.h
diff --git a/ui/app_list/view_ids.h b/ui/app_list/view_ids.h
new file mode 100644
index 0000000000000000000000000000000000000000..7228b8355ad221c5134dc2d6c71bb524146be512
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+++ b/ui/app_list/view_ids.h
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+// Copyright (c) 2012 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 UI_APP_LIST_VIEW_IDS_H_
+#define UI_APP_LIST_VIEW_IDS_H_
+#pragma once
+
+namespace app_list {
+
+enum ViewID {
+  VIEW_ID_SEARCH_BOX = 1,
+  VIEW_ID_APPS_GRID,
+  VIEW_ID_PAGE_SWITCHER,
+  VIEW_ID_SEARCH_RESULTS,
+};
+
+}  // namespace app_list
+
+#endif  // UI_APP_LIST_VIEW_IDS_H_