Clean backport to `jfx20u`. Tested in connection with all other WebKit backports in `jfx-20.0.1` branch.
------------- Commit messages: - 8303217: Webview loaded webpage is not showing play, volume related buttons for embeded Audio/Video elements Changes: https://git.openjdk.org/jfx20u/pull/8/files Webrev: https://webrevs.openjdk.org/?repo=jfx20u&pr=8&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8303217 Stats: 400 lines in 18 files changed: 396 ins; 3 del; 1 mod Patch: https://git.openjdk.org/jfx20u/pull/8.diff Fetch: git fetch https://git.openjdk.org/jfx20u pull/8/head:pull/8 PR: https://git.openjdk.org/jfx20u/pull/8
