Reland r6330 thru r6333 but do without enabling GL_ARB_fragment_coord_conventions on Intel GPUs.



git-svn-id: http://skia.googlecode.com/svn/trunk@6048 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrContext.cpp b/src/gpu/GrContext.cpp
index 81f9717..e729e6d 100644
--- a/src/gpu/GrContext.cpp
+++ b/src/gpu/GrContext.cpp
@@ -1061,9 +1061,7 @@
     verts[3].fPos = SkPoint::Make(R, B);
 
     for (int i = 0; i < 4; ++i) {
-        // this goes to fragment shader, it should be in y-points-up space.
-        verts[i].fCenter = SkPoint::Make(center.fX, rt->height() - center.fY);
-
+        verts[i].fCenter = center;
         verts[i].fOuterRadius = outerRadius;
         verts[i].fInnerRadius = innerRadius;
     }