Mark some scrolling related tests as failure

BUG=280203
TEST=none
TBR=haraken@chromium.org

Review URL: https://codereview.chromium.org/23622003

git-svn-id: svn://svn.chromium.org/blink/trunk@156786 bbb929c8-8fbe-4397-9dbb-9b2b20218538