Add SkFUZZF to help whitelist imagefilter fuzz failures

src/core/SkImageFilter.cpp

 /*
  * Copyright 2012 The Android Open Source Project
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkImageFilter.h"
 #include "SkImageFilterCacheKey.h"
 
 #include "SkBitmap.h"
 #include "SkBitmapDevice.h"
 #include "SkChecksum.h"
 #include "SkDevice.h"
+#include "SkFuzzLogging.h"
 #include "SkLocalMatrixImageFilter.h"
 #include "SkMatrixImageFilter.h"
 #include "SkOncePtr.h"
 #include "SkReadBuffer.h"
 #include "SkRect.h"
 #include "SkSpecialImage.h"
 #include "SkSpecialSurface.h"
 #include "SkTDynamicHash.h"
 #include "SkTInternalLList.h"
 #include "SkValidationUtils.h"
@@ skipping 105 matching lines @@
 
 bool SkImageFilter::Common::unflatten(SkReadBuffer& buffer, int expectedCount) {
     const int count = buffer.readInt();
     if (!buffer.validate(count >= 0)) {
         return false;
     }
     if (!buffer.validate(expectedCount < 0 || count == expectedCount)) {
         return false;
     }
 
+    SkFUZZF(("allocInputs: %d\n", count));
     this->allocInputs(count);
     for (int i = 0; i < count; i++) {
         if (buffer.readBool()) {
             fInputs[i] = sk_sp<SkImageFilter>(buffer.readImageFilter());
         }
         if (!buffer.isValid()) {
             return false;
         }
     }
     SkRect rect;
@@ skipping 674 matching lines @@
         dev = SkBitmapDevice::Create(cinfo.fInfo, surfaceProps);
     }
     return dev;
 }
 
 bool SkImageFilter::DeviceProxy::filterImage(const SkImageFilter* filter, const SkBitmap& src,
                                        const SkImageFilter::Context& ctx,
                                        SkBitmap* result, SkIPoint* offset) {
     return fDevice->filterImage(filter, src, ctx, result, offset);
 }