[Chromium] Expected flakey tests after fix for 73021 is committed

[Chromium] Expected flakey tests after fix for 73021 is committed
https://bugs.webkit.org/show_bug.cgi?id=73677

Unreviewed chromium tests expectations update.

Patch by Stephen Chenney <schenney@chromium.org> on 2011-12-05

* platform/chromium-linux/svg/stroke/zero-length-arc-linecaps-rendering-expected.png: Added.
* platform/chromium-mac-snowleopard/svg/stroke: Added.
* platform/chromium-mac-snowleopard/svg/stroke/zero-length-arc-linecaps-rendering-expected.png: Added.
* platform/chromium-win/svg/stroke: Added.
* platform/chromium-win/svg/stroke/zero-length-arc-linecaps-rendering-expected.png: Added.
* platform/chromium/test_expectations.txt:

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@102008 268f45cc-cd09-0410-ab3c-d52691b4dbfc