Move iframe border/padding to the standard Fullscreen UA style sheet

This spec bug was resolved very quickly: (Thanks, Anne!)
https://www.w3.org/Bugs/Public/show_bug.cgi?id=28332

The ua-style-iframe-border.html test is no longer needed, as it was
written specifically to handle the fact that the border rule was not
!important, which it now is.

BUG=402378

Review URL: https://codereview.chromium.org/1032253002

git-svn-id: svn://svn.chromium.org/blink/trunk@192610 bbb929c8-8fbe-4397-9dbb-9b2b20218538
2 files changed
tree: 29232ac14fe22464822b3f1555742af859fc59ae
  1. third_party/