Make extensions DSE persistent in browser prefs

components/search_engines/util.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 COMPONENTS_SEARCH_ENGINES_UTIL_H_
 #define COMPONENTS_SEARCH_ENGINES_UTIL_H_
 
 // This file contains utility functions for search engine functionality.
 
 #include <memory>
@@ skipping 121 matching lines @@
     const std::vector<std::unique_ptr<TemplateURLData>>& prepopulated_urls,
     TemplateURL* default_search_provider,
     TemplateURLService::OwnedTemplateURLVector* template_urls,
     const SearchTermsData& search_terms_data,
     std::set<std::string>* removed_keyword_guids);
 
 TemplateURLService::OwnedTemplateURLVector::iterator FindTemplateURL(
     TemplateURLService::OwnedTemplateURLVector* urls,
     const TemplateURL* url);
 
+std::unique_ptr<TemplateURLData> TemplateUrlDataFromDictionary(
+    const base::DictionaryValue& dict);
+
+std::unique_ptr<base::DictionaryValue> TemplateUrlDataToDictionary(
+    const TemplateURLData& turl_data);
+
 #endif  // COMPONENTS_SEARCH_ENGINES_UTIL_H_