Added a utility method to run code on the FX thread if it's not already, and changed the animation methods to use it.
------------- Commit messages: - Remove whitespace - Remove whitespace - Run methods on the FX thread Changes: https://git.openjdk.org/jfx/pull/1352/files Webrev: https://webrevs.openjdk.org/?repo=jfx&pr=1352&range=00 Issue: https://bugs.openjdk.org/browse/JDK-8324658 Stats: 65 lines in 4 files changed: 34 ins; 19 del; 12 mod Patch: https://git.openjdk.org/jfx/pull/1352.diff Fetch: git fetch https://git.openjdk.org/jfx.git pull/1352/head:pull/1352 PR: https://git.openjdk.org/jfx/pull/1352
