[Android] Allow setting recently visited search engines as default search engine

components/search_engines/template_url_service.cc

Index: components/search_engines/template_url_service.cc
diff --git a/components/search_engines/template_url_service.cc b/components/search_engines/template_url_service.cc
index ee12247b7e05e9ee6eb700c5464e914503b57d10..aeafbbc6dbd31d1e1573fda2d5bf3ff08cc57020 100644
--- a/components/search_engines/template_url_service.cc
+++ b/components/search_engines/template_url_service.cc
@@ -1642,8 +1642,8 @@ bool TemplateURLService::CanAddAutogeneratedKeywordForHost(
 }
 
 bool TemplateURLService::CanReplace(const TemplateURL* t_url) {
-  return (t_url != default_search_provider_ && !t_url->show_in_default_list() &&
-          t_url->safe_for_autoreplace());
+  return (t_url != default_search_provider_ && t_url->prepopulate_id() <= 0 &&
+          !t_url->created_by_policy() && t_url->safe_for_autoreplace());
 }
 
 TemplateURL* TemplateURLService::FindNonExtensionTemplateURLForKeyword(