hg: caciocavallo/ng: Delegat off-screen image creation to the CacioToolkit.

[neugens.limasoftware at gmail.com]

Changeset: 38ec32bc6f11
Author:    Mario Torre <neugens.limasoftware at gmail.com>
Date:      2011-03-22 13:28 +0100
URL:       http://hg.openjdk.java.net/caciocavallo/ng/rev/38ec32bc6f11

Delegat off-screen image creation to the CacioToolkit.
This allows different platforms to provide optimized
off-screen images.
Added a flag to indicate that the background needs to be
cleared during the next paint operation.
Contributed by: Ingo Proetel

! src/share/classes/sun/awt/peer/cacio/CacioComponentPeer.java
! src/share/classes/sun/awt/peer/cacio/CacioToolkit.java