| Index: third_party/WebKit/LayoutTests/compositing/squashing/dont-squash-with-scale-transform.html
|
| diff --git a/third_party/WebKit/LayoutTests/compositing/squashing/dont-squash-with-scale-transform.html b/third_party/WebKit/LayoutTests/compositing/squashing/dont-squash-with-scale-transform.html
|
| new file mode 100644
|
| index 0000000000000000000000000000000000000000..77ac31a86286266089466a4adb992b4935cff7af
|
| --- /dev/null
|
| +++ b/third_party/WebKit/LayoutTests/compositing/squashing/dont-squash-with-scale-transform.html
|
| @@ -0,0 +1,29 @@
|
| +<!DOCTYPE html>
|
| +<script src="../../resources/testharness.js"></script>
|
| +<style>
|
| +.scale-transform {
|
| + transform: scale(0.75);
|
| +}
|
| +.translate-transform {
|
| + transform: translateX(5px);
|
| +}
|
| +</style>
|
| +<div style="will-change: transform; width: 200px; height: 200px; background: lightgray;"></div>
|
| +<div class="scale-transform" style="position: absolute; width: 200px; height: 200px; top: 100px; left: 100px; background: lightblue"></div>
|
| +<div class="translate-transform" style="position: absolute; width: 200px; height: 200px; top: 100px; left: 100px; background: lightblue"></div>
|
| +<script>
|
| +if (window.testRunner)
|
| + testRunner.dumpAsText();
|
| +onload = function() {
|
| + if (window.internals) {
|
| + var layers = JSON.parse(internals.layerTreeAsText(document, internals.LAYER_TREE_INCLUDES_DEBUG_INFO));
|
| +
|
| + // The scale-transform layer can't be squashed
|
| + assert_true(layers.children[0].children[1].children[0].compositingReasons[1] == "Layer was separately composited because it could not be squashed.");
|
| + assert_true(layers.children[0].children[1].children[0].squashingDisallowedReasons[0] == "Cannot squash layers with transforms that are not identity or translation.");
|
| +
|
| + // ...but the translate-transform one can.
|
| + assert_true(layers.children[0].children[1].children[1].compositingReasons[0] == "Secondary layer, home for a group of squashable content");
|
| + }
|
| +};
|
| +</script>
|
|
|
Chromium Code Reviews
Issue 1835833005:
Don't squash layers with non-translation transforms. (Closed)
Base URL: https://chromium.googlesource.com/chromium/src.git@master