Make extensions DSE persistent in browser prefs

components/search_engines/template_url_service.cc

 // 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.
 
 #include "components/search_engines/template_url_service.h"
 
 #include <algorithm>
 #include <utility>
 
 #include "base/auto_reset.h"
@@ skipping 2442 matching lines @@
   DCHECK_NE(TemplateURL::NORMAL, type);
   for (const auto& turl : template_urls_) {
     if (turl->type() == type &&
         TemplateURL::MatchesData(turl.get(), &data, search_terms_data()))
       return turl.get();
   }
   return nullptr;
 }
 
 void TemplateURLService::UpdateExtensionDefaultSearchEngine() {
-  TemplateURL* most_recently_intalled_default = nullptr;
+  TemplateURL* most_recently_installed_default = nullptr;
   for (const auto& turl : template_urls_) {
     if ((turl->type() == TemplateURL::NORMAL_CONTROLLED_BY_EXTENSION) &&
         turl->extension_info_->wants_to_be_default_engine &&
         turl->SupportsReplacement(search_terms_data()) &&
-        (!most_recently_intalled_default ||
-         (most_recently_intalled_default->extension_info_->install_time <
+        (!most_recently_installed_default ||
+         (most_recently_installed_default->extension_info_->install_time <
           turl->extension_info_->install_time)))
-      most_recently_intalled_default = turl.get();
+      most_recently_installed_default = turl.get();
   }
 
-  if (most_recently_intalled_default) {
+  if (most_recently_installed_default) {
     base::AutoReset<DefaultSearchChangeOrigin> change_origin(
         &dsp_change_origin_, DSP_CHANGE_OVERRIDE_SETTINGS_EXTENSION);
-    default_search_manager_.SetExtensionControlledDefaultSearchEngine(
-        most_recently_intalled_default->data());
-  } else {
-    default_search_manager_.ClearExtensionControlledDefaultSearchEngine();
+    // Store extension TURL data to default search pref. Default search manager
+    // listens to pref changes and will update current default search.
+    std::unique_ptr<base::Value> url_dict(
+        TemplateUrlDataToDictionary(most_recently_installed_default->data()));
+    client_->SetExtensionControlledPref(
+        most_recently_installed_default->extension_info_->extension_id,
+        DefaultSearchManager::kDefaultSearchProviderDataPrefName,
+        std::move(url_dict));
   }
 }