More missing Skia includes

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/SkBitmap.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"
 
 namespace {
 
 static const int BitmapSize = 24;
 
 bool ReadTestCase(const char* filename, std::string* ipc_filter_message) {
   base::FilePath filepath = base::FilePath::FromUTF8Unsafe(filename);
@@ skipping 66 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;
 }