diff --git a/src/gpu/GrClipMaskManager.cpp b/src/gpu/GrClipMaskManager.cpp
index 99068c7..6415859 100644
--- a/src/gpu/GrClipMaskManager.cpp
+++ b/src/gpu/GrClipMaskManager.cpp
@@ -40,6 +40,9 @@
     static const int kMaskStage = GrPaint::kTotalStages+1;
 
     SkMatrix mat;
+    // We want to use device coords to compute the texture coordinates. We set our matrix to be
+    // equal to the view matrix followed by an offset to the devBound, and then a scaling matrix to
+    // normalized coords. We apply this matrix to the vertex positions rather than local coords.
     mat.setIDiv(result->width(), result->height());
     mat.preTranslate(SkIntToScalar(-devBound.fLeft),
                      SkIntToScalar(-devBound.fTop));
@@ -51,7 +54,9 @@
                          GrTextureDomainEffect::Create(result,
                                       mat,
                                       GrTextureDomainEffect::MakeTexelDomain(result, domainTexels),
-                                      GrTextureDomainEffect::kDecal_WrapMode))->unref();
+                                      GrTextureDomainEffect::kDecal_WrapMode,
+                                      false,
+                                      GrEffect::kPosition_CoordsType))->unref();
 }
 
 bool path_needs_SW_renderer(GrContext* context,
@@ -354,7 +359,8 @@
         GrTextureDomainEffect::Create(srcMask,
                                       sampleM,
                                       GrTextureDomainEffect::MakeTexelDomain(srcMask, srcBound),
-                                      GrTextureDomainEffect::kDecal_WrapMode))->unref();
+                                      GrTextureDomainEffect::kDecal_WrapMode,
+                                      false))->unref();
     fGpu->drawSimpleRect(SkRect::MakeFromIRect(dstBound), NULL);
 
     drawState->disableStage(0);