Re: Update mozilla CSS reftests as of 2017-04-20 (#5621)

# [Codecov](https://codecov.io/gh/w3c/web-platform-tests/pull/5621?src=pr&el=h1) Report
> Merging [#5621](https://codecov.io/gh/w3c/web-platform-tests/pull/5621?src=pr&el=desc) into [master](https://codecov.io/gh/w3c/web-platform-tests/commit/76b15396ab176e0dd121c057b82ec6bf8243966a?src=pr&el=desc) will **not change** coverage.
> The diff coverage is `n/a`.

[![Impacted file tree graph](https://codecov.io/gh/w3c/web-platform-tests/pull/5621/graphs/tree.svg?width=650&height=150&src=pr&token=DI3aecdnSC)](https://codecov.io/gh/w3c/web-platform-tests/pull/5621?src=pr&el=tree)

```diff
@@           Coverage Diff           @@
##           master    #5621   +/-   ##
=======================================
  Coverage   87.22%   87.22%           
=======================================
  Files          24       24           
  Lines        2418     2418           
  Branches      406      406           
=======================================
  Hits         2109     2109           
  Misses        239      239           
  Partials       70       70
```



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> Powered by [Codecov](https://codecov.io/gh/w3c/web-platform-tests/pull/5621?src=pr&el=footer). Last update [76b1539...c085033](https://codecov.io/gh/w3c/web-platform-tests/pull/5621?src=pr&el=lastupdated). Read the [comment docs](https://docs.codecov.io/docs/pull-request-comments).


View on GitHub: https://github.com/w3c/web-platform-tests/pull/5621#issuecomment-295751049

Received on Thursday, 20 April 2017 14:08:52 UTC