tunnel down texture-size-constraint to imagefilters

src/effects/SkMorphologyImageFilter.cpp

Index: src/effects/SkMorphologyImageFilter.cpp
diff --git a/src/effects/SkMorphologyImageFilter.cpp b/src/effects/SkMorphologyImageFilter.cpp
index 4e08d9dd733148b369105604461332dd09ce534e..9447a7347df6b7f131a91496cfc8b98af4691ea8 100644
--- a/src/effects/SkMorphologyImageFilter.cpp
+++ b/src/effects/SkMorphologyImageFilter.cpp
@@ -547,7 +547,8 @@ bool apply_morphology(const SkBitmap& input,
                       const SkIRect& rect,
                       GrMorphologyEffect::MorphologyType morphType,
                       SkISize radius,
-                      SkBitmap* dst) {
+                      SkBitmap* dst,
+                      GrTextureProvider::SizeConstraint constraint) {
     SkAutoTUnref<GrTexture> srcTexture(SkRef(input.getTexture()));
     SkASSERT(srcTexture);
     GrContext* context = srcTexture->getContext();
@@ -565,7 +566,7 @@ bool apply_morphology(const SkBitmap& input,
     SkIRect srcRect = rect;
 
     if (radius.fWidth > 0) {
-        GrTexture* scratch = context->textureProvider()->createApproxTexture(desc);
+        GrTexture* scratch = context->textureProvider()->createTexture(desc, constraint);
         if (nullptr == scratch) {
             return false;
         }
@@ -589,7 +590,7 @@ bool apply_morphology(const SkBitmap& input,
         srcRect = dstRect;
     }
     if (radius.fHeight > 0) {
-        GrTexture* scratch = context->textureProvider()->createApproxTexture(desc);
+        GrTexture* scratch = context->textureProvider()->createTexture(desc, constraint);
         if (nullptr == scratch) {
             return false;
         }
@@ -647,7 +648,8 @@ bool SkMorphologyImageFilter::filterImageGPUGeneric(bool dilate,
 
     GrMorphologyEffect::MorphologyType type = dilate ? GrMorphologyEffect::kDilate_MorphologyType
                                                      : GrMorphologyEffect::kErode_MorphologyType;
-    if (!apply_morphology(input, srcBounds, type, SkISize::Make(width, height), result)) {
+    if (!apply_morphology(input, srcBounds, type, SkISize::Make(width, height), result,
+                          proxy->getSizeConstraint())) {
         return false;
     }
     offset->fX = bounds.left();