tunnel down texture-size-constraint to imagefilters

src/core/SkCanvas.cpp

Index: src/core/SkCanvas.cpp
diff --git a/src/core/SkCanvas.cpp b/src/core/SkCanvas.cpp
index 6914963cb9e1fc738f71773af60ffb7fc7759849..6dd8d0472136ef1ca0690e5420e8688167b952f4 100644
--- a/src/core/SkCanvas.cpp
+++ b/src/core/SkCanvas.cpp
@@ -1308,7 +1308,8 @@ void SkCanvas::internalDrawDevice(SkBaseDevice* srcDev, int x, int y,
             matrix.postTranslate(SkIntToScalar(-pos.x()), SkIntToScalar(-pos.y()));
             SkIRect clipBounds = SkIRect::MakeWH(srcDev->width(), srcDev->height());
             SkAutoTUnref<SkImageFilter::Cache> cache(dstDev->getImageFilterCache());
-            SkImageFilter::Context ctx(matrix, clipBounds, cache.get());
+            SkImageFilter::Context ctx(matrix, clipBounds, cache.get(),
+                                       SkImageFilter::kApprox_SizeConstraint);
             if (filter->filterImage(&proxy, src, ctx, &dst, &offset)) {
                 SkPaint tmpUnfiltered(*paint);
                 tmpUnfiltered.setImageFilter(nullptr);
@@ -1359,7 +1360,8 @@ void SkCanvas::onDrawSprite(const SkBitmap& bitmap, int x, int y, const SkPaint*
             matrix.postTranslate(SkIntToScalar(-pos.x()), SkIntToScalar(-pos.y()));
             const SkIRect clipBounds = bitmap.bounds();
             SkAutoTUnref<SkImageFilter::Cache> cache(iter.fDevice->getImageFilterCache());
-            SkImageFilter::Context ctx(matrix, clipBounds, cache.get());
+            SkImageFilter::Context ctx(matrix, clipBounds, cache.get(),
+                                       SkImageFilter::kApprox_SizeConstraint);
             if (filter->filterImage(&proxy, bitmap, ctx, &dst, &offset)) {
                 SkPaint tmpUnfiltered(*paint);
                 tmpUnfiltered.setImageFilter(nullptr);