SkTreatAsSprite should take AA into account

src/core/SkCanvas.cpp

 /*
  * Copyright 2008 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 "SkBitmapDevice.h"
 #include "SkCanvas.h"
 #include "SkCanvasPriv.h"
@@ skipping 2202 matching lines @@
 
     LOOPER_END
 }
 
 bool SkCanvas::canDrawBitmapAsSprite(SkScalar x, SkScalar y, int w, int h, const SkPaint& paint) {
     if (!paint.getImageFilter()) {
         return false;
     }
 
     const SkMatrix& ctm = this->getTotalMatrix();
-    const unsigned kSubpixelBits = 0;   // matching SkDraw::drawBitmap()
-    if (!SkTreatAsSprite(ctm, w, h, kSubpixelBits)) {
+    if (!SkTreatAsSprite(ctm, SkISize::Make(w, h), paint)) {
         return false;
     }
 
     // Currently we can only use the filterSprite code if we are clipped to the bitmap's bounds.
     // Once we can filter and the filter will return a result larger than itself, we should be
     // able to remove this constraint.
     // skbug.com/4526
     //
     SkPoint pt;
     ctm.mapXY(x, y, &pt);
@@ skipping 787 matching lines @@
     }
 
     if (matrix) {
         canvas->concat(*matrix);
     }
 }
 
 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
     fCanvas->restoreToCount(fSaveCount);
 }