admin_bar_deliver in core/modules/admin_bar/admin_bar.module
Delivery callback for client-side HTTP caching.
backdrop_deliver_html_page in core/includes/common.inc
Packages and sends the result of a page callback to the browser as HTML.
backdrop_json_deliver in core/includes/common.inc
Packages and sends the result of a page callback to the browser as JSON.
drupal_page_footer in core/includes/drupal.inc
Performs end-of-request tasks.
redirect_goto in core/modules/redirect/redirect.module
Redirect callback; perform an URL redirect.
system_token_browser_output in core/modules/system/system.pages.inc
Token browser JSON endpoint delivery callback.