Fix has_aligned_samples helper for SkGpuDevice::drawTextureProducer

src/gpu/SkGpuDevice_drawTexture.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkGpuDevice.h"
 
 #include "GrBlurUtils.h"
@@ skipping 41 matching lines @@
     }
 }
 
 //////////////////////////////////////////////////////////////////////////////
 //  Helper functions for dropping src rect constraint in bilerp mode.
 
 static const SkScalar kColorBleedTolerance = 0.001f;
 
 static bool has_aligned_samples(const SkRect& srcRect, const SkRect& transformedRect) {
     // detect pixel disalignment
-    if (SkScalarAbs(SkScalarFraction(transformedRect.left())) < kColorBleedTolerance &&
-        SkScalarAbs(SkScalarFraction(transformedRect.top())) < kColorBleedTolerance &&
-        SkScalarAbs(transformedRect.width() - srcRect.width()) < kColorBleedTolerance &&
+    if (SkScalarAbs(SkScalarRoundToScalar(transformedRect.left()) - transformedRect.left()) < kColorBleedTolerance &&
+        SkScalarAbs(SkScalarRoundToScalar(transformedRect.top())  - transformedRect.top())  < kColorBleedTolerance &&
+        SkScalarAbs(transformedRect.width()  - srcRect.width())  < kColorBleedTolerance &&
         SkScalarAbs(transformedRect.height() - srcRect.height()) < kColorBleedTolerance) {
         return true;
     }
     return false;
 }
 
 static bool may_color_bleed(const SkRect& srcRect,
                             const SkRect& transformedRect,
                             const SkMatrix& m,
                             bool isMSAA) {
@@ skipping 185 matching lines @@
                                       rec,
                                       rrect)) {
         return;
     }
     SkPath rectPath;
     rectPath.addRect(clippedDstRect);
     GrBlurUtils::drawPathWithMaskFilter(this->context(), fDrawContext, fRenderTarget, fClip,
                                         rectPath, &grPaint, viewMatrix, mf, paint.getPathEffect(),
                                         GrStrokeInfo::FillInfo());
 }