Fix ImageFilter fuzzer issue

src/core/SkReadBuffer.cpp

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "SkBitmap.h"
 #include "SkErrorInternals.h"
 #include "SkImage.h"
@@ skipping 120 matching lines @@
 }
 
 void SkReadBuffer::readIRect(SkIRect* rect) {
     memcpy(rect, fReader.skip(sizeof(SkIRect)), sizeof(SkIRect));
 }
 
 void SkReadBuffer::readRect(SkRect* rect) {
     memcpy(rect, fReader.skip(sizeof(SkRect)), sizeof(SkRect));
 }
 
+void SkReadBuffer::readRRect(SkRRect* rrect) {
+    fReader.readRRect(rrect);
+}
+
 void SkReadBuffer::readRegion(SkRegion* region) {
     fReader.readRegion(region);
 }
 
 void SkReadBuffer::readPath(SkPath* path) {
     fReader.readPath(path);
 }
 
 bool SkReadBuffer::readArray(void* value, size_t size, size_t elementSize) {
     const size_t count = this->getArrayCount();
@@ skipping 229 matching lines @@
             return;
         }
     } else {
         if (nullptr == this->readFunctionPtr()) {
             return;
         }
     }
     uint32_t sizeRecorded = fReader.readU32();
     fReader.skip(sizeRecorded);
 }