Update to GTK WebKit 2.30.3 https://webkitgtk.org/2020/11/20/webkitgtk2.30.3-released.html
------------- Commit messages: - 8254836: Cherry pick GTK WebKit 2.30.3 changes Changes: https://git.openjdk.java.net/jfx/pull/392/files Webrev: https://webrevs.openjdk.java.net/?repo=jfx&pr=392&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8254836 Stats: 679 lines in 37 files changed: 483 ins; 87 del; 109 mod Patch: https://git.openjdk.java.net/jfx/pull/392.diff Fetch: git fetch https://git.openjdk.java.net/jfx pull/392/head:pull/392 PR: https://git.openjdk.java.net/jfx/pull/392
