[BlackBerry] Add an empty implementation of GraphicsContext3D::setErrorMessageCallback

[BlackBerry] Add an empty implementation of GraphicsContext3D::setErrorMessageCallback
https://bugs.webkit.org/show_bug.cgi?id=82570

Patch by Robin Cao <robin.cao@torchmobile.com.cn> on 2012-03-29
Reviewed by Rob Buis.

No new tests, no change in functionality.

* platform/graphics/blackberry/GraphicsContext3DBlackBerry.cpp:
(WebCore::GraphicsContext3D::setErrorMessageCallback): Add an empty implementation.
(WebCore):

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@112520 268f45cc-cd09-0410-ab3c-d52691b4dbfc