Only engage the webview tooltips on a webview
Only engage the webview tooltips on a webview

The tooltip presenter should not try to put tooltips on something that's
not a webview (such as a PDF view.)

https://phabricator.endlessm.com/T11064

endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib,endlessm/eos-knowledge-lib