Refactor PNGImageDecoder's call to setSize

third_party/WebKit/Source/platform/image-decoders/png/PNGImageDecoderTest.cpp

 // Copyright 2016 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 "platform/image-decoders/png/PNGImageDecoder.h"
 
 #include <memory>
 #include "platform/image-decoders/ImageDecoderTestHelpers.h"
 #include "png.h"
 #include "testing/gtest/include/gtest/gtest.h"
@@ skipping 1025 matching lines @@
       EXPECT_FALSE(decoder->frameIsCompleteAtIndex(0));
     }
 
     frame = decoder->frameBufferAtIndex(0);
     ASSERT_TRUE(frame);
     EXPECT_EQ(ImageFrame::FrameComplete, frame->getStatus());
     EXPECT_TRUE(decoder->frameIsCompleteAtIndex(0));
   }
 }
 
+TEST(PNGTests, sizeMayOverflow) {
+  auto decoder =
+      createDecoderWithPngData("/LayoutTests/images/resources/crbug702934.png");
+  EXPECT_FALSE(decoder->isSizeAvailable());
+  EXPECT_TRUE(decoder->failed());
+}
+
 };  // namespace blink