Clean backport to `jfx11u`. Tested in connection with all other WebKit backports in `jfx-kcr-11.0.19` branch.
------------- Commit messages: - 8301022: Video distortion is observed while playing youtube video Changes: https://git.openjdk.org/jfx11u/pull/137/files Webrev: https://webrevs.openjdk.org/?repo=jfx11u&pr=137&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8301022 Stats: 1527 lines in 4 files changed: 1527 ins; 0 del; 0 mod Patch: https://git.openjdk.org/jfx11u/pull/137.diff Fetch: git fetch https://git.openjdk.org/jfx11u pull/137/head:pull/137 PR: https://git.openjdk.org/jfx11u/pull/137
