If editing text and the WebView loses focus as a whole, the last text input caret can be left visible. Ensure it's removed just as though the focus had moved to another node.
Created attachment 181359 [details] Patch
Created attachment 181360 [details] Patch
Comment on attachment 181360 [details] Patch Clearing flags on attachment: 181360 Committed r138853: <http://trac.webkit.org/changeset/138853>
All reviewed patches have been landed. Closing bug.