remove imagefilter::sizeconstraint

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 1421 matching lines @@
             SkIPoint offset = SkIPoint::Make(0, 0);
             const SkBitmap& src = srcDev->accessBitmap(false);
             SkMatrix matrix = *iter.fMatrix;
             matrix.postTranslate(SkIntToScalar(-pos.x()), SkIntToScalar(-pos.y()));
 #ifdef SK_SUPPORT_SRC_BOUNDS_BLOAT_FOR_IMAGEFILTERS
             SkIRect clipBounds = SkIRect::MakeWH(srcDev->width(), srcDev->height());
 #else
             SkIRect clipBounds = iter.fClip->getBounds().makeOffset(-pos.x(), -pos.y());
 #endif
             SkAutoTUnref<SkImageFilter::Cache> cache(dstDev->getImageFilterCache());
-            SkImageFilter::Context ctx(matrix, clipBounds, cache.get(),
-                                       SkImageFilter::kApprox_SizeConstraint);
+            SkImageFilter::Context ctx(matrix, clipBounds, cache.get());
             if (filter->filterImage(&proxy, src, ctx, &dst, &offset)) {
                 SkPaint tmpUnfiltered(*paint);
                 tmpUnfiltered.setImageFilter(nullptr);
                 dstDev->drawSprite(iter, dst, pos.x() + offset.x(), pos.y() + offset.y(),
                                    tmpUnfiltered);
             }
         } else if (deviceIsBitmapDevice) {
             const SkBitmap& src = static_cast<SkBitmapDevice*>(srcDev)->fBitmap;
             dstDev->drawSprite(iter, src, pos.x(), pos.y(), *paint);
         } else {
@@ skipping 1574 matching lines @@
     }
 
     if (matrix) {
         canvas->concat(*matrix);
     }
 }
 
 SkAutoCanvasMatrixPaint::~SkAutoCanvasMatrixPaint() {
     fCanvas->restoreToCount(fSaveCount);
 }