8008793: SecurityManager.checkXXX behavior not specified for methods that check AWTPermission and AWT not present

[Alan Bateman]

SecurityManager's checkTopLevelWindow, checkSystemClipboardAccess and 
checkAwtEventQueueAccess methods are specified to check AWTPermission. 
An outstanding issue is that they don't specify how they behave when AWT 
is not present (compact profiles, and modules in the future).

I would like to change these methods so that they behave as if the 
permission check fails. I think this is the approach of least-surprise 
as it's not possible to grant anyone AWTPermission when the permission 
type does not exist.

This the webrev with the proposed changes:

http://cr.openjdk.java.net/~alanb/8008793/webrev/

Note that the implementation changes are mostly just removing the "fake 
permission" code (this was originally put in to ensure that 
checkPermission was called with a permission that could never be 
granted, it's not needed now).

Thanks,

-Alan.