commit 5d8010e1fc081481d0646618e700b51a4699ab4c
author iclelland <iclelland@chromium.org> Thu Aug 17 21:47:11 2017
committer Commit Bot <commit-bot@chromium.org> Thu Aug 17 21:47:11 2017
tree 73abd1ac189d2ec2b9eb8b5efd32fde7544b6007
parent 81565fa69c0d5cdd4275fcf9d858f92b5e8aa551

Reenable feature policy control over fullscreen

This CL also changes test expectations to bring the fullscreen tests in
line with the new behaviour prescribed by Feature Policy.

Specifically:
 - Same origin iframes by default have the same ability to use
   fullscreen as their parent frame. Tests which previously only used
   same-origin frame have been changed to verify the new behaviour,
   and new tests in LayoutTests/http/tests have been added to test the
   same situation with cross-origin frames.
 - Dynamic modification of the allowfullscreen flag has no effect until
   the iframe contents are navigated/reloaded.
 - Web platform tests are marked as failing, and should remain so until
   the fullscreen spec is updated fo include the new behaviour.
 - A new Browser test class is created which explicitly disables
   feature policy so that we don't lose coverage for the old behaviour
   when FP is disabled.

BUG=718155,623682

Review-Url: https://codereview.chromium.org/2898503002
Cr-Commit-Position: refs/heads/master@{#495331}