Reload Instant NTP and Instant-process tabs on search url change

chrome/browser/search/search_test_utils.h

+// Copyright (c) 2013 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_SEARCH_SEARCH_TEST_UTILS_H_
+#define CHROME_BROWSER_SEARCH_SEARCH_TEST_UTILS_H_
+
+class Profile;
+
+namespace search_test_utils {
+
+void SetSearchProvider(Profile* profile);
+
+// Build an Instant URL with or without a valid search terms replacement key
+// as per |has_search_term_replacement_key|. Set that URL as the instant URL
+// for the default search provider.
+void SetDefaultInstantTemplateUrl(Profile* profile,
+                                  bool has_search_term_replacement_key);
+}  // namespace search_test_utils
+
+#endif  // CHROME_BROWSER_SEARCH_SEARCH_TEST_UTILS_H_