[jfx11u] RFR: 8277457: AccessControlException: access denied ("java.net.NetPermission" "getCookieHandler")

[Kevin Rushforth]

Clean backport to `jfx11u`.

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Commit messages:
 - 8277457: AccessControlException: access denied ("java.net.NetPermission" "getCookieHandler")

Changes: https://git.openjdk.java.net/jfx11u/pull/70/files
 Webrev: https://webrevs.openjdk.java.net/?repo=jfx11u&pr=70&range=00
  Issue: https://bugs.openjdk.java.net/browse/JDK-8277457
  Stats: 101 lines in 2 files changed: 99 ins; 0 del; 2 mod
  Patch: https://git.openjdk.java.net/jfx11u/pull/70.diff
  Fetch: git fetch https://git.openjdk.java.net/jfx11u pull/70/head:pull/70

PR: https://git.openjdk.java.net/jfx11u/pull/70