<!DOCTYPE html>
<html lang="en">
<head>
  <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
  <title>Canvas Incremental Repaint</title>
  <style type="text/css" media="screen">
    canvas {
      width: 200px;
      height: 150px;
      border: 20px solid black;
    }
  </style>
  <script type="text/javascript" charset="utf-8">

    if (window.testRunner) {
      testRunner.dumpAsText(true);
      testRunner.waitUntilDone();
    }

    function runRepaintTest()
    {
        if (window.testRunner) {
            document.body.offsetTop;
            testRunner.displayAndTrackRepaints();
            repaintTest();
            testRunner.notifyDone();
        } else {
            setTimeout(repaintTest, 0);
        }
    }
    
    function repaintTest()
    {
      var canvas = document.getElementById('canvas1');
      var ctx = canvas.getContext('2d');

      ctx.fillStyle = 'green';
      
      ctx.save();
      ctx.setTransform(1, 0, 0, 1, 50, 200);
      // Test the the transform applies the matrix in the correct order.
      ctx.transform(1, 0, 0, -1, 0, 0);
      ctx.fillRect(0, 100, 200, 80);
      ctx.restore();
    }
    
  </script>
</head>
<body onload="runRepaintTest()">
  <canvas id="canvas1"></canvas>
</body>
</html>