hg: openjfx/8u-dev/rt: Fix RT-37793: Performance issues on Canvas clearing temp and clip buffers

[james.graham at oracle.com]

Changeset: 37119e0b1c5d
Author:    flar <James.Graham at oracle.com>
Date:      2014-07-10 16:02 -0700
URL:       http://hg.openjdk.java.net/openjfx/8u-dev/rt/rev/37119e0b1c5d

Fix RT-37793: Performance issues on Canvas clearing temp and clip buffers
Reviewed by: Felipe

! modules/graphics/src/main/java/com/sun/javafx/sg/prism/NGCanvas.java