use_google_chrome_frame

Filter Hook: Filters whether Google Chrome Frame should be used, if available.

Source: wp-includes/vars.php:68

get_random_header_image()

Function: Get random header image url from registered images in theme.

Source: wp-includes/theme.php:1146

get_meta_sql()

Function: Given a meta query, generates SQL clauses to be appended to a main query.

Source: wp-includes/meta.php:885