The "Debug This Pixel..." feature in PIX often fails when using the
D3D9Ex interfaces.  In order to get debug pixel to work on a Vista/Win 7
machine, define "ANGLE_ENABLE_D3D9EX=0" in your project file.

Review URL: http://codereview.appspot.com/4526106

git-svn-id: https://angleproject.googlecode.com/svn/trunk@672 736b8ea6-26fd-11df-bfd4-992fa37f6226