Reland r174516 "Oilpan: Use transition types for HTMLCanvasElement."

Added empty virtual destructor to non-oilpan build.

Reverted: https://codereview.chromium.org/292203006
Original: https://codereview.chromium.org/292113004

BUG=357163

Review URL: https://codereview.chromium.org/284313018

git-svn-id: svn://svn.chromium.org/blink/trunk@174569 bbb929c8-8fbe-4397-9dbb-9b2b20218538