Change CSSBasicShape and subclasses to oilpan transistion types.

I also modified the compareCSSVector method to take the inline capacity as a parameter to avoid a copy in CSSValueList.

R=ager@chromium.org, erik.corry@gmail.com, haraken@chromium.org, tkent@chromium.org, vegorov@chromium.org, zerny@chromium.org
BUG=341815
NOTRY=true

Review URL: https://codereview.chromium.org/166343003

git-svn-id: svn://svn.chromium.org/blink/trunk@167416 bbb929c8-8fbe-4397-9dbb-9b2b20218538