remove legacy Skia flags

skia/tools/filter_fuzz_stub/filter_fuzz_stub.cc

Index: skia/tools/filter_fuzz_stub/filter_fuzz_stub.cc
diff --git a/skia/tools/filter_fuzz_stub/filter_fuzz_stub.cc b/skia/tools/filter_fuzz_stub/filter_fuzz_stub.cc
index b96d9d3adc2677e58a1b7a292c115aa43355528b..f9d329ac4ba60d0b6350569e3fca01540f338945 100644
--- a/skia/tools/filter_fuzz_stub/filter_fuzz_stub.cc
+++ b/skia/tools/filter_fuzz_stub/filter_fuzz_stub.cc
@@ -28,16 +28,15 @@ void RunTestCase(std::string& ipc_filter_message, SkBitmap& bitmap,
                  SkCanvas* canvas) {
   // This call shouldn't crash or cause ASAN to flag any memory issues
   // If nothing bad happens within this call, everything is fine
-  SkFlattenable* flattenable = SkValidatingDeserializeFlattenable(
-        ipc_filter_message.c_str(), ipc_filter_message.size(),
-        SkImageFilter::GetFlattenableType());
+  sk_sp<SkImageFilter> flattenable = SkValidatingDeserializeImageFilter(
+        ipc_filter_message.c_str(), ipc_filter_message.size());
 
   // Adding some info, but the test passed if we got here without any trouble
   if (flattenable != NULL) {
     LOG(INFO) << "Valid stream detected.";
     // Let's see if using the filters can cause any trouble...
     SkPaint paint;
-    paint.setImageFilter(static_cast<SkImageFilter*>(flattenable))->unref();
+    paint.setImageFilter(flattenable);
     canvas->save();
     canvas->clipRect(SkRect::MakeXYWH(
         0, 0, SkIntToScalar(BitmapSize), SkIntToScalar(BitmapSize)));