Fix for CSS reference effects when the filter renderer is lazy attached (e.g., assigned via innerHTML).

BUG=272585
R=esprehn,krit

Review URL: https://chromiumcodereview.appspot.com/23672007

git-svn-id: svn://svn.chromium.org/blink/trunk@156878 bbb929c8-8fbe-4397-9dbb-9b2b20218538