Generating support annotations from DOM triage list.

This is applying the results of the detailed API triage I did to the support annotations for DOM types.

BUG=
R=jacobr@google.com

Review URL: https://codereview.chromium.org//15074006

git-svn-id: https://dart.googlecode.com/svn/branches/bleeding_edge/dart@23159 260f80e4-7a28-3924-810f-c04153c831b5