Automatic update from web-platform-testsUpdate move-to-fullscreen-iframe-manual.html to match the spec This test is from https://chromium-review.googlesource.com/776599 and the explanation seemed to make sense spec-wise. But when matching the spec more closely this begins to fail, and it seems that per spec this updated behavior is what would happen. wpt-commits: db1a703c3785094e38bbf29497157ff4652e04df wpt-pr: 9299 wpt-commits: db1a703c3785094e38bbf29497157ff4652e04df wpt-pr: 9299