LayoutTests/compositing/iframes/composited-iframe-transition-flicker.html - Issue 324733002: Add a layout test for iframe flicker due to overflow scroll promotion

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Issue 324733002: Add a layout test for iframe flicker due to overflow scroll promotion (Closed) Base URL: svn://svn.chromium.org/blink/trunk

Patch Set: . Created 6 years, 6 months ago

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	1 <!DOCTYPE HTML>

	2 <iframe id="frame" srcdoc="<style>input { width: 100px; }</style><input id='inpu t' value='add stuff here'></input>"></iframe>

	3 <script>

	4 if (window.testRunner)

	5 testRunner.dumpAsText();

	6 if (window.internals)

	7 window.internals.settings.setAcceleratedCompositingForOverflowScrollEnabled( true);

	8

	9 onload = function() {

	10 var layerTreePreStyleUpdate = "";

	11 var layerTreePostStyleUpdate = "";

	12

	13 document.getElementById("frame").contentDocument.getElementById("input").val ue =

	14 "This is a very long string that will cause overflow";

	15 layerTreePreStyleUpdate = window.internals.layerTreeAsText(document);

	16

	17 // Force a style recalc.

	18 document.body.offsetTop;

	19 layerTreePostStyleUpdate = window.internals.layerTreeAsText(document);

	20

	21 var pre = document.createElement('pre');

	22 if (layerTreePreStyleUpdate === layerTreePostStyleUpdate)

	23 pre.innerHTML = "PASS - layer trees are the same.";

	24 else

	25 pre.innerHTML = "FAIL - layer trees are not the same.";

	26 document.body.appendChild(pre);

	27 };

	28 </script>

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