remove legacy Skia flags

skia/tools/filter_fuzz_stub/filter_fuzz_stub.cc

 // Copyright 2013 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "base/files/file_util.h"
 #include "base/logging.h"
 #include "base/test/test_discardable_memory_allocator.h"
 #include "third_party/skia/include/core/SkCanvas.h"
 #include "third_party/skia/include/core/SkFlattenableSerialization.h"
 #include "third_party/skia/include/core/SkImageFilter.h"
@@ skipping 10 matching lines @@
     return false;
   }
 
   return true;
 }
 
 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)));
 
     // This call shouldn't crash or cause ASAN to flag any memory issues
     // If nothing bad happens within this call, everything is fine
     canvas->drawBitmap(bitmap, 0, 0, &paint);
 
     LOG(INFO) << "Filter DAG rendered successfully";
     canvas->restore();
@@ skipping 34 matching lines @@
     if (!ReadAndRunTestCase(argv[i], bitmap, &canvas))
       ret = 2;
 
   // Cluster-Fuzz likes "#EOF" as the last line of output to help distinguish
   // successful runs from crashes.
   printf("#EOF\n");
 
   return ret;
 }