Bug 1319458: Mark <body> as display:none during pageload of talos glterrain test. r=jmaher

MozReview-Commit-ID: LdUVInFYrDn
2016-11-22 13:13:45 -08:00 · 2016-11-22 13:13:45 -08:00 · a4b633bdc7
--- a/testing/talos/talos/tests/webgl/benchmarks/terrain/perftest.html
+++ b/testing/talos/talos/tests/webgl/benchmarks/terrain/perftest.html
@ -364,6 +364,11 @@

  // The full test starts here
  function test() {
+    // We initially hide the <body>, to reduce the chance of spinning our wheels
+    // with incremental ASAP-paint-mode paints during pageload. Now that onload
+    // has fired, we un-hide it:
+    document.body.style.display = "";
+
    gResults = {values: [], names: [], raw: []};
    // This test measures average frame interval during WebGL animation as follows:
    // 1. Creates a new WebGL canvas.
@ -393,7 +398,7 @@
  }
 </script>
 </head>
-<body onload="test();" style="overflow:hidden; margin:0">
+<body onload="test();" style="overflow:hidden; margin:0; display:none">
 <canvas id="c"></canvas>
 <img src="grass.jpeg" style="display:none" id="grass"/>
 </body>