hg: openjfx/2.2/graphics/rt: Fix RT-22885: PixelFormat.get/setArgb() methods have errors.

[hang.vo at oracle.com]

Changeset: ab81c2cf3cca
Author:    flar <James.Graham at oracle.com>
Date:      2012-06-23 19:53 -0700
URL:       http://hg.openjdk.java.net/openjfx/2.2/graphics/rt/rev/ab81c2cf3cca

Fix RT-22885: PixelFormat.get/setArgb() methods have errors.

! javafx-ui-common/src/javafx/scene/image/PixelFormat.java
! javafx-ui-common/src/javafx/scene/image/WritablePixelFormat.java
+ javafx-ui-common/test/unit/javafx/scene/image/PixelFormatTest.java