[7u40] Request for phase 2 approval for CR 8006941 - [macosx] Deadlock in drag and drop

[Petr Pchelko]

Hello,

this is a request to push the fix for 8006941 into the jdk7u40 repository.

Bug: http://bugs.sun.com/view_bug.do?bug_id=8006941
Webrev: http://cr.openjdk.java.net/~pchelko/8006941/webrev.06/
Review thread:  http://mail.openjdk.java.net/pipermail/awt-dev/2013-March/004394.html
Reviewers: Sergey Bylokhov, Anthony Petrov
JDK8 Changeset: http://hg.openjdk.java.net/jdk8/awt/jdk/rev/2c36899500a0

Rationale:
The use of SwingUtilities is removed from the Appkit thread to avoid the deadlock over AWTTreeLock. The fix should be back ported because the probability of this to happen increased with the jdk7u changes.

With best regards. Petr.