<!DOCTYPE html>

<html>
<head>
    <style>
        body {
            height: 2000px;
        }
 	   #test {
 	       height: 200px;
 	       width: 250px;
 	       border: 1px solid black;
 	       background-image: linear-gradient(blue, green);
 	       background-size: 100% 300px;
           background-attachment: fixed;
 	   }
    </style>
    <script>
        if (window.testRunner) {
            testRunner.dumpAsText();
            testRunner.waitUntilDone();
        }

        function documentLoaded()
        {
            // Timeout is required to allow layers to paint before the scroll.
            window.setTimeout(doTest, 0);
        }
        
        function doTest()
        {
            if (window.internals)
                window.internals.startTrackingRepaints();

            window.scrollTo(0, 100);

            if (window.internals)
                document.getElementById('repaintRects').textContent = window.internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_REPAINT_RECTS);
            
            if (window.testRunner)
                testRunner.notifyDone();
        }
                
        window.addEventListener('load', documentLoaded, false);
    </script>
</head>
<body>

<p>We should only repaint the bounds of the element with a fixed background.</p>
<div id="test"></div>
<pre id="repaintRects"></pre>

</body>
</html>