Remove duplication of encoded image data

third_party/WebKit/Source/platform/graphics/DeferredImageDecoderTest.cpp

Index: third_party/WebKit/Source/platform/graphics/DeferredImageDecoderTest.cpp
diff --git a/third_party/WebKit/Source/platform/graphics/DeferredImageDecoderTest.cpp b/third_party/WebKit/Source/platform/graphics/DeferredImageDecoderTest.cpp
index 1c11ca1c00cf4cdc9c92df5733762ccc79de2bb3..528e09bf7ea8252b149c0e995f1246ae2b4bb162 100644
--- a/third_party/WebKit/Source/platform/graphics/DeferredImageDecoderTest.cpp
+++ b/third_party/WebKit/Source/platform/graphics/DeferredImageDecoderTest.cpp
@@ -409,4 +409,14 @@ TEST_F(DeferredImageDecoderTest, respectActualDecoderSizeOnCreate)
     EXPECT_EQ(static_cast<size_t>(0), frameBytesCleared);
 }
 
+TEST_F(DeferredImageDecoderTest, data)
+{
+    RefPtr<SharedBuffer> originalData = SharedBuffer::create(m_data->data(), m_data->size());
+    EXPECT_EQ(originalData->size(), m_data->size());
+    m_lazyDecoder->setData(*originalData, false);
+    RefPtr<SharedBuffer> newData = m_lazyDecoder->data();
+    EXPECT_EQ(originalData->size(), newData->size());
+    EXPECT_EQ(0, std::memcmp(originalData->data(), newData->data(), newData->size()));
+}
+
 } // namespace blink