The fast/hidpi/image-srcset-svg-canvas.html layout test is flaky on GTK+ (sometimes it fails).
When it fails the diff is the following:
Updating test expectations on bug #143982
The test(s) filed under this bug have been consistently passing for the last 4000 revisions. Marking bug as fixed.
Committed r263254: <https://trac.webkit.org/changeset/263254>