Use a <circle> instead of a <path> in DownloadArrow.svg.
https://bugs.webkit.org/show_bug.cgi?id=136608

Reviewed by Antoine Quint.

* UserInterface/Images/DownloadArrow.svg:
* UserInterface/Views/TreeElementStatusButton.css:
(.item > .status > .status-button > svg .filled):
(body.mac-platform.legacy .item > .status > .status-button > svg .filled):
(:focus .item.selected > .status > .status-button > svg .filled):
(.item > .status > .status-button > svg .stroked):
(body.mac-platform.legacy .item > .status > .status-button > svg .stroked):
(:focus .item.selected > .status > .status-button > svg .stroked):
Tweak CSS selectors to apply to other shapes, not just path.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@173366 268f45cc-cd09-0410-ab3c-d52691b4dbfc