Update web-platform-tests

Import wpt@fed03d61ac548fb94838e0f868f75c619d9a8edb

Using update-w3c-deps in Chromium 1353ef00266c2b94ab98b1e028296c273fa14a70.

BUG=622853,622819

Review-Url: https://codereview.chromium.org/2086283003
Cr-Commit-Position: refs/heads/master@{#402318}
378 files changed