LayoutTests/compositing/tiling/non-visible-window-tile-coverage.html - WebKit - Git at Google

 <!DOCTYPE html>
 <html>
 <body>
 <p>Tiles when window is visible:</p>
 <pre id="visibleResult"></pre>
 <p>Tiles when window is not visible:</p>
 <pre id="nonVisibleResult"></pre>
 <div style="height: 3000px; width: 3000px"></div>
 <script>
 if (window.testRunner) {
     testRunner.dumpAsText();
     testRunner.waitUntilDone();
     internals.setSpeculativeTilingDelayDisabledForTesting(true);

     onload = function() {
         setTimeout(function() {

             document.getElementById("visibleResult").innerText = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS | internals.LAYER_TREE_INCLUDES_TILE_CACHES);
             document.onvisibilitychange = function() {
                 if (!document.hidden)
                     return;
                 setTimeout(function() {
                     document.getElementById("nonVisibleResult").innerText = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS | internals.LAYER_TREE_INCLUDES_TILE_CACHES);

                     testRunner.resetPageVisibility();
                     internals.setSpeculativeTilingDelayDisabledForTesting(false);
                     testRunner.notifyDone();
                 }, 0);
             }
             testRunner.setPageVisibility("hidden");
         }, 0);
     }
 }
 </script>
 </body>
 </html>
	<!DOCTYPE html>
	<html>
	<body>
	<p>Tiles when window is visible:</p>
	<pre id="visibleResult"></pre>
	<p>Tiles when window is not visible:</p>
	<pre id="nonVisibleResult"></pre>
	<div style="height: 3000px; width: 3000px"></div>
	<script>
	if (window.testRunner) {
	testRunner.dumpAsText();
	testRunner.waitUntilDone();
	internals.setSpeculativeTilingDelayDisabledForTesting(true);

	onload = function() {
	setTimeout(function() {

	document.getElementById("visibleResult").innerText = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS \| internals.LAYER_TREE_INCLUDES_TILE_CACHES);
	document.onvisibilitychange = function() {
	if (!document.hidden)
	return;
	setTimeout(function() {
	document.getElementById("nonVisibleResult").innerText = internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_VISIBLE_RECTS \| internals.LAYER_TREE_INCLUDES_TILE_CACHES);

	testRunner.resetPageVisibility();
	internals.setSpeculativeTilingDelayDisabledForTesting(false);
	testRunner.notifyDone();
	}, 0);
	}
	testRunner.setPageVisibility("hidden");
	}, 0);
	}
	}
	</script>
	</body>
	</html>