How can we add our own default search engine ?

[Budi]

Which one must be edited to be what:

id, short_name, keyword, favicon_url, url, safe_for_autoreplace, originating_url, date_created, usage_count, input_encodings, suggest_url, prepopulate_id, created_by_policy, last_modified, sync_guid, alternate_urls, image_url, search_url_post_params, suggest_url_post_params, image_url_post_params, new_tab_url, last_visited
?