Show separator in SearchResultTileItemListView

ui/app_list/views/search_result_separator.h

+// Copyright (c) 2017 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_VIEWS_SEARCH_RESULT_SEPARATOR_H_
+#define UI_APP_LIST_VIEWS_SEARCH_RESULT_SEPARATOR_H_
+
+#include "ui/app_list/app_list_model.h"
+#include "ui/views/controls/separator.h"
+
+namespace app_list {
+
+// SearchResultSeparator separates SearchResult of different result types.
+class APP_LIST_EXPORT SearchResultSeparator : public views::Separator {
+ public:
+  SearchResultSeparator();
+  ~SearchResultSeparator() override;
+
+  // Overridden from View:
+  void OnPaint(gfx::Canvas* canvas) override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(SearchResultSeparator);
+};
+
+}  // namespace app_list
+
+#endif  // UI_APP_LIST_VIEWS_SEARCH_RESULT_SEPARATOR_H_