import FIREFOX_52_6_0esr_RELEASE from mozilla-esr52 hg repo

This commit is contained in:
Roy Tam 2018-01-19 03:59:58 +08:00
commit dcd9973243
150858 changed files with 23884658 additions and 0 deletions

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<!DOCTYPE HTML>
<html class="reftest-wait">
<body style="background:white;">
<!-- Test to ensure that changing the poster after video has painted its first
frame doesn't render the poster. The video frame should not change to the
poster, since it's already painted its first video frame. -->
<video src="black140x100.webm"
preload="auto"
id="v"
autoplay
onended="document.getElementById('v').poster = 'blue250x200.png'; setTimeout(function(){document.documentElement.className = '';},0);"></video>
</body>
</html>