Add field to monitor last visited time for each search engine

components/search_engines/template_url_prepopulate_data.cc

Index: components/search_engines/template_url_prepopulate_data.cc
diff --git a/components/search_engines/template_url_prepopulate_data.cc b/components/search_engines/template_url_prepopulate_data.cc
index 0eaa075f75ab7620fdd54c9e401934354058dcb9..cdcef535d6bc969b50566f2743a333e5a86aae90 100644
--- a/components/search_engines/template_url_prepopulate_data.cc
+++ b/components/search_engines/template_url_prepopulate_data.cc
@@ -1013,6 +1013,7 @@ std::unique_ptr<TemplateURLData> MakePrepopulatedTemplateURLData(
   data->input_encodings.push_back(encoding.as_string());
   data->date_created = base::Time();
   data->last_modified = base::Time();
+  data->last_visited = base::Time();

[Peter Kasting, 2016/11/21 03:35:08]

Nit: See comments in settings_overrides_api.cc

[ltian, 2016/11/28 22:08:02]

Done.

   data->prepopulate_id = id;
   for (size_t i = 0; i < alternate_urls.GetSize(); ++i) {
     std::string alternate_url;