A clean backport to 8391823 jfx27u for intermittent webview crash when running TextuteMapperTest.
--------- - [x] I confirm that I make this contribution in accordance with the [OpenJDK Interim AI Policy](https://openjdk.org/legal/ai). ------------- Commit messages: - Backport e043975ed76bd6339c65e1eb08385e48b53cf012 Changes: https://git.openjdk.org/jfx27u/pull/15/files Webrev: https://webrevs.openjdk.org/?repo=jfx27u&pr=15&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8391823 Stats: 26 lines in 4 files changed: 22 ins; 2 del; 2 mod Patch: https://git.openjdk.org/jfx27u/pull/15.diff Fetch: git fetch https://git.openjdk.org/jfx27u.git pull/15/head:pull/15 PR: https://git.openjdk.org/jfx27u/pull/15
