We probably need WEBKIT_EDITING_COMMAND_PASTE_AS_PLAINTEXT to go with the new WEBKIT_CONTEXT_MENU_ACTION_PASTE_AS_PLAIN_TEXT from bug #177638.
Created attachment 399668 [details] Patch
Thanks for the patch. If this patch contains new public API please make sure it follows the guidelines for new WebKit2 GTK+ API. See http://trac.webkit.org/wiki/WebKitGTK/AddingNewWebKit2API
This test is lazy, it just checks that availability matches the existing paste action (it should, it doesn't need its own separate availability). Let's see if it passes EWS....
Created attachment 399691 [details] Patch
Ephy impl: https://gitlab.gnome.org/GNOME/epiphany/-/merge_requests/672
Committed r261855: <https://trac.webkit.org/changeset/261855> All reviewed patches have been landed. Closing bug and clearing flags on attachment 399691 [details].