Use memcpy in SVGPathByteStreamSource::readType

Source/core/svg/SVGPathByteStreamSource.h

Index: Source/core/svg/SVGPathByteStreamSource.h
diff --git a/Source/core/svg/SVGPathByteStreamSource.h b/Source/core/svg/SVGPathByteStreamSource.h
index 0875ef796175e507d9e77639d3663c0208173beb..17ff6988006203c4bda81985be09e7fa56577f2d 100644
--- a/Source/core/svg/SVGPathByteStreamSource.h
+++ b/Source/core/svg/SVGPathByteStreamSource.h
@@ -60,13 +60,9 @@ private:
     {
         ByteType<DataType> data;
         size_t typeSize = sizeof(ByteType<DataType>);
-
-        for (size_t i = 0; i < typeSize; ++i) {
-            ASSERT(m_streamCurrent < m_streamEnd);
-            data.bytes[i] = *m_streamCurrent;
-            ++m_streamCurrent;
-        }
-
+        ASSERT(m_streamCurrent + typeSize <= m_streamEnd);
+        memcpy(data.bytes, m_streamCurrent, typeSize);
+        m_streamCurrent += typeSize;
         return data.value;
     }