allow to pass a fallback window in case the existing one is null (or can't be computed).
Fix for JDK-8267160 ------------- Commit messages: - allow to pass a fallback window in case the existing one is null (or can't be computed). Changes: https://git.openjdk.java.net/jfx/pull/502/files Webrev: https://webrevs.openjdk.java.net/?repo=jfx&pr=502&range=00 Issue: https://bugs.openjdk.java.net/browse/JDK-8267160 Stats: 13 lines in 2 files changed: 7 ins; 0 del; 6 mod Patch: https://git.openjdk.java.net/jfx/pull/502.diff Fetch: git fetch https://git.openjdk.java.net/jfx pull/502/head:pull/502 PR: https://git.openjdk.java.net/jfx/pull/502
