LayoutTests/http/conf/php.ini - WebKit - Git at Google

 ; Let <meta charset> work. A charset provided in Content-Type takes precedence, and PHP 5.6+ defaults to UTF-8.
 default_charset = ""
	; Let <meta charset> work. A charset provided in Content-Type takes precedence, and PHP 5.6+ defaults to UTF-8.
	default_charset = ""