[9] Review Request: 8144164 [macosx] Test java/awt/Focus/MouseClickRequestFocusRaceTest/MouseClickRequestFocusRaceTest failed

[Sergey Bylokhov]

Hello,
Please review the small fix for jdk9.

The test tries to use Alt+F4 but it is meaningless on OSX.
- On OSX Ctrl+f4 (cycle between open windows in all applications) now is 
used, to simulate the native focus lost.
- cleanup.
Bug: https://bugs.openjdk.java.net/browse/JDK-8144164
Webrev can be found at: http://cr.openjdk.java.net/~serb/8144164/webrev.01

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Best regards, Sergey.