Default geometry processor

src/gpu/effects/GrCustomCoordsTextureEffect.cpp

Index: src/gpu/effects/GrCustomCoordsTextureEffect.cpp
diff --git a/src/gpu/effects/GrCustomCoordsTextureEffect.cpp b/src/gpu/effects/GrCustomCoordsTextureEffect.cpp
index afa075460386b71531ecc2bb35b659b0a4de571f..77e799414aed9702b5d6de8232df39dfc7d26f85 100644
--- a/src/gpu/effects/GrCustomCoordsTextureEffect.cpp
+++ b/src/gpu/effects/GrCustomCoordsTextureEffect.cpp
@@ -31,6 +31,10 @@ public:
         const GrShaderVar& inTextureCoords = customCoordsTextureEffect.inTextureCoords();
         vsBuilder->codeAppendf("%s = %s;", v.vsOut(), inTextureCoords.c_str());
 
+        // setup position varying
+        vsBuilder->codeAppendf("%s = %s * vec3(%s, 1);", vsBuilder->glPosition(),
+                               vsBuilder->uViewM(), vsBuilder->inPosition());
+
         GrGLGPFragmentBuilder* fsBuilder = args.fPB->getFragmentShaderBuilder();
         fsBuilder->codeAppendf("%s = ", args.fOutput);
         fsBuilder->appendTextureLookupAndModulate(args.fInput,