After the resolution of bug 137296, the NavigationItemProbes icon was updated for the Mac port and we should now have a similar ideogram in the GTK+ port.
Created attachment 242246 [details]
Created attachment 242247 [details]
Capture with previous ideograms and current ones after applying this patch
Comment on attachment 242246 [details]
Clearing flags on attachment: 242246
Committed r176548: <http://trac.webkit.org/changeset/176548>
All reviewed patches have been landed. Closing bug.