Simplifies the structure of app_list search a bit.

ui/app_list/test/test_search_result.h

+// 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 UI_APP_LIST_TEST_TEST_SEARCH_RESULT_H_
+#define UI_APP_LIST_TEST_TEST_SEARCH_RESULT_H_
+
+#include "ui/app_list/search_result.h"
+
+namespace app_list {
+
+// A test search result which does nothing.
+class TestSearchResult : public SearchResult {
+ public:
+  TestSearchResult();
+  virtual ~TestSearchResult();
+
+  // SearchResult:
+  virtual scoped_ptr<SearchResult> Duplicate() override;
+
+ private:
+  DISALLOW_COPY_AND_ASSIGN(TestSearchResult);
+};
+
+}  // namespace app_list
+
+#endif  // UI_APP_LIST_TEST_TEST_SEARCH_RESULT_H_