test/java/awt/Mouse/GetMousePositionTest/GetMousePositionWithPopup.java

rev 14031 : 8160974: [TESTBUG] Mark more headful tests with @key headful.

This is a backport of fe58d505fffd from jdk9. 228/596 hunks apply without
modifications. 16 hunks required manual rework. The remainder were for files
not present in jdk8u.

@@ -28,10 +28,11 @@
 import java.awt.event.MouseEvent;
 import java.awt.event.MouseMotionAdapter;
 
 /**
  * @test
+ * @key headful
  * @bug 8012026
  * @summary Component.getMousePosition() does not work in an applet on MacOS
  * @author Petr Pchelko
  * @library ../../regtesthelpers
  * @build Util