VTTCue: Add TypeChecking=Unrestricted

Enables proper checking of the startTime and endTime parameters to the
constructor.
Fix one test (media/track/track-cue-negative-timestamp.html) which
previously tested the wrong thing, and drop one subtest of
media/track/track-add-remove-cue.html since it's pretty useless.

BUG=448000

Review URL: https://codereview.chromium.org/854863002

git-svn-id: svn://svn.chromium.org/blink/trunk@188621 bbb929c8-8fbe-4397-9dbb-9b2b20218538
6 files changed
tree: 9c6a14936b0858c64c5a878864d5130c28060268
  1. third_party/