Re: [page-visibility-tests] Updated WebIDL to match Page Visibility 2 (#4189)

# Chrome #
Testing revision 0d08cc0b57c17d88ad95447eb45c17cefee09888
Starting 10 test iterations
All results were stable

## All results ##

### [/page-visibility/idlharness.html](http://w3c-test.org/submissions/4189/page-visibility/idlharness.html) ###
|                                                  Subtest                                                  | Results |
|-----------------------------------------------------------------------------------------------------------|---------|
|                                                                                                           | OK      |
| `Stringification of window.document`                                                                      | FAIL    |
| `Document interface: window.document must inherit property "hidden" with the proper type (0)`             | PASS    |
| `Document interface: attribute hidden`                                                                    | PASS    |
| `Document must be primary interface of window.document`                                                   | FAIL    |
| `Document interface: attribute visibilityState`                                                           | PASS    |
| `Document interface: window.document must inherit property "onvisibilitychange" with the proper type (2)` | FAIL    |
| `Document interface: window.document must inherit property "visibilityState" with the proper type (1)`    | PASS    |
| `Document interface: attribute onvisibilitychange`                                                        | FAIL    |


View on GitHub: https://github.com/w3c/web-platform-tests/pull/4189#issuecomment-259463790

Received on Wednesday, 9 November 2016 16:51:13 UTC