Make extensions DSE persistent in browser prefs

components/search_engines/search_engines_test_util.h

+// 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 COMPONENTS_SEARCH_ENGINES_SEARCH_ENGINES_TEST_UTIL_H_
+#define COMPONENTS_SEARCH_ENGINES_SEARCH_ENGINES_TEST_UTIL_H_
+
+#include <string>
+
+struct TemplateURLData;
+
+namespace sync_preferences {
+class TestingPrefServiceSyncable;
+}
+
+// Generate TemplateURLData structure useful for tests filled with values

[Peter Kasting, 2017/01/06 01:44:57]

Nit: Generate -> Generates a

[Alexander Yashkin, 2017/01/07 12:56:00]

Fixed.

+// autogenerated from provider_name param.

[Peter Kasting, 2017/01/06 01:44:58]

Nit: provider_name param -> |provider_name|

[Alexander Yashkin, 2017/01/07 12:56:00]

Done.

+std::unique_ptr<TemplateURLData> GenerateDummyTemplateURLData(
+    const std::string& provider_name);
+
+// Checks that the two TemplateURLs are similar. Does not check the id, the
+// date_created or the last_modified time.  Neither pointer should be null.
+void ExpectSimilar(const TemplateURLData* expected,
+                   const TemplateURLData* actual);
+
+// Writes default search engine |extension_data| into extension controlled

[Peter Kasting, 2017/01/06 01:44:58]

Nit: extension controlled -> the extension-controlled default search

[Alexander Yashkin, 2017/01/07 12:56:00]

Fixed.

+// preference in test pref service.

[Peter Kasting, 2017/01/06 01:44:58]

Nit: test pref service -> |prefs| (2 places)

[Alexander Yashkin, 2017/01/07 12:56:00]

Fixed.

+void SetExtensionDefaultSearchInPrefs(
+    sync_preferences::TestingPrefServiceSyncable* prefs,
+    const TemplateURLData& extension_data);
+
+// Removes extension controlled default search engine preference from test

[Peter Kasting, 2017/01/06 01:44:57]

Nit: Removes extension controlled -> Removes the extension-controlled

[Alexander Yashkin, 2017/01/07 12:56:00]

Fixed.

+// pref service.
+void RemoveExtensionDefaultSearchFromPrefs(
+    sync_preferences::TestingPrefServiceSyncable* prefs);
+
+#endif  // COMPONENTS_SEARCH_ENGINES_SEARCH_ENGINES_TEST_UTIL_H_