Move transform, -webkit-transform and -webkit-filter out of oldApplyProperty

Continue moving properties out of oldApplyProperty. I felt that using
custom_value instead of converter= was slightly nicer, as the latter
just feels like needless indirection in this case.

BUG=237400

Review URL: https://codereview.chromium.org/269013002

git-svn-id: svn://svn.chromium.org/blink/trunk@173361 bbb929c8-8fbe-4397-9dbb-9b2b20218538