Move MakeDivByTextureWHMatrix to GrCoordTransform

src/effects/SkMagnifierImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkMagnifierImageFilter.h"
 #include "SkColorPriv.h"
@@ skipping 48 matching lines @@
     typedef GrGLMagnifierEffect GLEffect;
 
 private:
     GrMagnifierEffect(GrTexture* texture,
                       float xOffset,
                       float yOffset,
                       float xInvZoom,
                       float yInvZoom,
                       float xInvInset,
                       float yInvInset)
-        : GrSingleTextureEffect(texture, MakeDivByTextureWHMatrix(texture))
+        : GrSingleTextureEffect(texture, GrCoordTransform::MakeDivByTextureWHMatrix(texture))
         , fXOffset(xOffset)
         , fYOffset(yOffset)
         , fXInvZoom(xInvZoom)
         , fYInvZoom(yInvZoom)
         , fXInvInset(xInvInset)
         , fYInvInset(yInvInset) {}
 
     virtual bool onIsEqual(const GrEffect&) const SK_OVERRIDE;
 
     GR_DECLARE_EFFECT_TEST;
@@ skipping 284 matching lines @@
 
             int x_val = SkPin32(SkScalarFloorToInt(x_interp), 0, width - 1);
             int y_val = SkPin32(SkScalarFloorToInt(y_interp), 0, height - 1);
 
             *dptr = sptr[y_val * width + x_val];
             dptr++;
         }
     }
     return true;
 }