Mark svg/overflow/overflow-on-outermost-svg-element-in-xhtml-defaults.xhtml for rebaselining

Mark svg/overflow/overflow-on-outermost-svg-element-in-xhtml-defaults.xhtml for rebaselining

The currently checked-in result was incorrectly put there by
https://src.chromium.org/viewvc/blink?revision=180085&view=revision, while
the actual results are correct.

BUG=401954
TBR=bungeman@chromium.org,fdegans@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=180095

[adamk, 2014-08-12 19:25:50]

Committed patchset #1 manually as 180095 (presubmit successful).

[bungeman-chromium, 2014-08-12 19:38:18]

lgtm