IDL: Support [Unforgeable] on interface definitions

An interface having [Unforgeable] should have the same effect as if every
non-static attribute or method had [Unforgeable].

BUG=444015

Review URL: https://codereview.chromium.org/900533003

git-svn-id: svn://svn.chromium.org/blink/trunk@189411 bbb929c8-8fbe-4397-9dbb-9b2b20218538
5 files changed
tree: d6a68c38b165e03160de0d35688800d75bdcc2ac
  1. third_party/