[chromium] Rebaseline svg/W3C-SVG-1.1/animate-elem-80-t.svg on linux

Unreviewed w/end gardening.

* platform/chromium-linux/svg/W3C-SVG-1.1/animate-elem-80-t-expected.png:
* platform/chromium/TestExpectations:

git-svn-id: http://svn.webkit.org/repository/webkit/trunk@139569 268f45cc-cd09-0410-ab3c-d52691b4dbfc