tunnel down texture-size-constraint to imagefilters

src/gpu/SkGpuDevice.cpp

Index: src/gpu/SkGpuDevice.cpp
diff --git a/src/gpu/SkGpuDevice.cpp b/src/gpu/SkGpuDevice.cpp
index fceacfc913249e574742407ef497e4592f3685fc..c4181c25cf65f02d08bb5b2543055c221b717dbb 100644
--- a/src/gpu/SkGpuDevice.cpp
+++ b/src/gpu/SkGpuDevice.cpp
@@ -682,7 +682,8 @@ void SkGpuDevice::drawPath(const SkDraw& draw, const SkPath& origSrcPath,
     GrBlurUtils::drawPathWithMaskFilter(fContext, fDrawContext, fRenderTarget,
                                         fClip, origSrcPath, paint,
                                         *draw.fMatrix, prePathMatrix,
-                                        draw.fClip->getBounds(), pathIsMutable);
+                                        draw.fClip->getBounds(), pathIsMutable,
+                                        GrTextureProvider::kApprox_SizeConstraint);
 }
 
 static const int kBmpSmallTileSize = 1 << 10;
@@ -1433,7 +1434,7 @@ void SkGpuDevice::drawSprite(const SkDraw& draw, const SkBitmap& bitmap,
         SkAutoTUnref<SkImageFilter::Cache> cache(getImageFilterCache());
         // This cache is transient, and is freed (along with all its contained
         // textures) when it goes out of scope.
-        SkImageFilter::Context ctx(matrix, clipBounds, cache);
+        SkImageFilter::Context ctx(matrix, clipBounds, cache, SkImageFilter::kApprox_SizeConstraint);
         if (this->filterTexture(fContext, texture, w, h, filter, ctx, &filteredBitmap,
                                 &offset)) {
             texture = (GrTexture*) filteredBitmap.getTexture();
@@ -1553,7 +1554,7 @@ void SkGpuDevice::drawDevice(const SkDraw& draw, SkBaseDevice* device,
         // This cache is transient, and is freed (along with all its contained
         // textures) when it goes out of scope.
         SkAutoTUnref<SkImageFilter::Cache> cache(getImageFilterCache());
-        SkImageFilter::Context ctx(matrix, clipBounds, cache);
+        SkImageFilter::Context ctx(matrix, clipBounds, cache, SkImageFilter::kApprox_SizeConstraint);
         if (this->filterTexture(fContext, devTex, device->width(), device->height(),
                                 filter, ctx, &filteredBitmap, &offset)) {
             devTex = filteredBitmap.getTexture();