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Test for <i><a href="https://bugs.webkit.org/show_bug.cgi?id=19964">Bug https://bugs.webkit.org/show_bug.cgi?id=19964</a></i>
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This test checks that using a 0x0 bmp file as a background image with the css background size height property set to auto does not result in a divide by zero.  This test passes if it does not cause a crash.
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