Remove GrCoordTransform::kPosition_CoordSet

src/gpu/GrSWMaskHelper.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrSWMaskHelper.h"
 
 #include "GrDrawState.h"
@@ skipping 343 matching lines @@
     if (!avmr.setIdentity(drawState)) {
         return;
     }
     GrDrawState::AutoRestoreEffects are(drawState);
 
     SkRect dstRect = SkRect::MakeLTRB(SK_Scalar1 * rect.fLeft,
                                       SK_Scalar1 * rect.fTop,
                                       SK_Scalar1 * rect.fRight,
                                       SK_Scalar1 * rect.fBottom);
 
-    // We want to use device coords to compute the texture coordinates. We set our matrix to be
-    // equal to the view matrix followed by a translation so that the top-left of the device bounds
-    // maps to 0,0, and then a scaling matrix to normalized coords. We apply this matrix to the
-    // vertex positions rather than local coords.
+    // We use device coords to compute the texture coordinates. We take the device coords and apply
+    // a translation so that the top-left of the device bounds maps to 0,0, and then a scaling
+    // matrix to normalized coords.
     SkMatrix maskMatrix;
     maskMatrix.setIDiv(texture->width(), texture->height());
     maskMatrix.preTranslate(SkIntToScalar(-rect.fLeft), SkIntToScalar(-rect.fTop));
-    maskMatrix.preConcat(drawState->getViewMatrix());
 
     drawState->addCoverageProcessor(
                          GrSimpleTextureEffect::Create(texture,
                                                        maskMatrix,
                                                        GrTextureParams::kNone_FilterMode,
-                                                       kPosition_GrCoordSet))->unref();
+                                                       kDevice_GrCoordSet))->unref();
 
     target->drawSimpleRect(drawState, color, dstRect);
 }