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Re: [fxtf-drafts] [geometry] DOMMatrix should not depend on the CSS parser

From: Chris Harrelson via GitHub <sysbot+gh@w3.org>
Date: Thu, 06 Apr 2017 18:10:53 +0000
To: public-fxtf-archive@w3.org
Message-ID: <issue_comment.created-292260288-1491502251-sysbot+gh@w3.org>
Blink and Gecko do not have use counter data at present for how hoften the CSS parsing happens, 
either via the constructor or setMatrixValue. On the other hand, we do have data from HTTPArchive, summarized as follows:

In httparchive:har.2017_01_15_chrome_requests_bodies there are 571 hits for 'setMatrixValue', and most of them are various versions of this library:
http://animate.adobe.com/runtime/4.0.0/edge.4.0.0.min.js
This does not measure usage of the constructor from a CSS string.

We also have data that DOMMatrix in Mozilla is very rarely used:
https://bugzilla.mozilla.org/show_bug.cgi?id=1346399#c3

However, WebkitCSSMatrix in Chrome is used in some way on 1% of pages, according to https://www.chromestatus.com/metrics/feature/popularity#WebKitCSSMatrix.

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GitHub Notification of comment by chrishtr
Please view or discuss this issue at https://github.com/w3c/fxtf-drafts/issues/122#issuecomment-292260288 using your GitHub account
Received on Thursday, 6 April 2017 18:10:59 UTC

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