Fix the y offset of Renderer11::copytexture to correct the inverted output image.

Was breaking the WebGL conformance test copy-tex-image-and-sub-image.

TRAC #22589

Signed-off-by: Geoff Lang
Signed-off-by: Nicolas Capens
Author: Jamie Madill

git-svn-id: https://angleproject.googlecode.com/svn/branches/dx11proto@1911 736b8ea6-26fd-11df-bfd4-992fa37f6226
1 file changed