tunnel down texture-size-constraint to imagefilters

src/core/SkMaskFilter.cpp

Index: src/core/SkMaskFilter.cpp
diff --git a/src/core/SkMaskFilter.cpp b/src/core/SkMaskFilter.cpp
index 0753944a3b8f5b76824fb4fee21c6eca0c6ca30a..fb9cfad3204c6dafb07f0231a7d29c7168090973 100644
--- a/src/core/SkMaskFilter.cpp
+++ b/src/core/SkMaskFilter.cpp
@@ -341,7 +341,8 @@ bool SkMaskFilter::filterMaskGPU(GrTexture* src,
                                  const SkMatrix& ctm,
                                  const SkRect& maskRect,
                                  GrTexture** result,
-                                 bool canOverwriteSrc) const {
+                                 bool canOverwriteSrc,
+                                 GrTextureProvider::SizeConstraint) const {
     return false;
 }
 #endif