RFR: 8342911: Remove calls to doPrivileged in controls [v2]

[Andy Goryachev]

> Removes doPrivileged in the following module:
> 
> - javafx.controls
> 
> See JDK-8342441 for details.
> 
> As a helpful hint for reviewers, I recommend reviewing this using the "Hide whitespace" option.

Andy Goryachev has updated the pull request incrementally with one additional commit since the last revision:

  review comments

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Changes:
  - all: https://git.openjdk.org/jfx/pull/1615/files
  - new: https://git.openjdk.org/jfx/pull/1615/files/ede95de6..5511ac11

Webrevs:
 - full: https://webrevs.openjdk.org/?repo=jfx&pr=1615&range=01
 - incr: https://webrevs.openjdk.org/?repo=jfx&pr=1615&range=00-01

  Stats: 10 lines in 2 files changed: 0 ins; 7 del; 3 mod
  Patch: https://git.openjdk.org/jfx/pull/1615.diff
  Fetch: git fetch https://git.openjdk.org/jfx.git pull/1615/head:pull/1615

PR: https://git.openjdk.org/jfx/pull/1615