LayoutTests/compositing/overflow/fixed-scroll-in-empty-root-layer.html - Issue 1298493003: Currently we only composite fixed position elements if we are on High DPI devices. This fix allows …

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Side by Side Diff: LayoutTests/compositing/overflow/fixed-scroll-in-empty-root-layer.html

Issue 1298493003: Currently we only composite fixed position elements if we are on High DPI devices. This fix allows … Base URL: https://chromium.googlesource.com/chromium/blink.git@master

Patch Set: Remove similarity check Created 5 years, 3 months ago

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1 <!DOCTYPE html>	1 <!DOCTYPE html>

2 <script src="../../fast/repaint/resources/text-based-repaint.js"></script>	2 <script src="../../fast/repaint/resources/text-based-repaint.js"></script>

3 <script>	3 <script>

4 function repaintTest() {	4 function repaintTest() {

5 window.scrollBy(0, 200);	5 window.scrollBy(0, 200);

6 }	6 }

7 onload = runRepaintTest;	7 onload = runRepaintTest;

8 </script>	8 </script>

9 <body style="height: 2000px">	9 <body style="height: 2000px">

10 Tests invalidation of fixed element when scrolled in a page with empty root la yer. Passes if there is no red.	10 Tests invalidation of fixed element when scrolled in a page with empty root la yer. Passes if there is no red.

11 <div style="	11 <div style="

12 position: fixed;	12 position: fixed;

13 top: 50px;	13 top: 50px;

14 left: 0;	14 left: 0;

15 width: 100px;	15 width: 100px;

16 height: 100px;	16 height: 100px;

17 background: green">	17 background: rgba(0, 128, 0, 0.99);">

18 </div>	18 </div>

19 <!-- This div makes all of the contents of the page be in sublayers of the roo t layer, so root layer is empty. -->	19 <!-- This div makes all of the contents of the page be in sublayers of the roo t layer, so root layer is empty. -->

20 <div style="	20 <div style="

21 position: absolute;	21 position: absolute;

22 z-index: -1;	22 z-index: -1;

23 backface-visibility: hidden;	23 backface-visibility: hidden;

24 top: 250px;	24 top: 250px;

25 left: 0;	25 left: 0;

26 background-color: red;	26 background-color: red;

27 width: 100px;	27 width: 100px;

28 height: 100px">	28 height: 100px">

29 </div>	29 </div>

30 </body>	30 </body>

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