Remove carriage returns from LayoutTests (18)

Split up from https://codereview.chromium.org/211393005/

Generated via:
git grep -I -l $'\r'$ | grep -v gif$ | grep -v mhtml | head -n 100

TBR=eseidel@chromium.org
BUG=357373

Review URL: https://codereview.chromium.org/216933006

git-svn-id: svn://svn.chromium.org/blink/trunk@170392 bbb929c8-8fbe-4397-9dbb-9b2b20218538