protected function get_default_handler( $dependency ) {
		switch ( $dependency ) {
			case self::KEY_STYLES:
				return self::DEFAULT_STYLE_HANDLER;
			case self::KEY_SCRIPTS:
				return self::DEFAULT_SCRIPT_HANDLER;
			default:
				return null;
		}
	}
protected function get_default_handler( $dependency ) {
		switch ( $dependency ) {
			case self::KEY_STYLES:
				return self::DEFAULT_STYLE_HANDLER;
			case self::KEY_SCRIPTS:
				return self::DEFAULT_SCRIPT_HANDLER;
			default:
				return null;
		}
	}
protected function get_default_handler ( $ dependency ) { switch ( $ dependency ) { case self :: KEY_STYLES : return self :: DEFAULT_STYLE_HANDLER ; case self :: KEY_SCRIPTS : return self :: DEFAULT_SCRIPT_HANDLER ; default : return null ; } }
Get the default handler class for a given type of dependency.

@since 0.1.0

@param string $dependency The dependency that needs a handler.
@return string|null Class name of the handler. Null if none.
Get the default handler class for a given type of dependency .