PluginController::willSendEventToPlugin() was introduced by http://webkit.org/b/59124. This method had been used only for WebKit2 on Windows, and no one uses it now. So we can remove it.
Created attachment 255011 [details] Patch
Comment on attachment 255011 [details] Patch Clearing flags on attachment: 255011 Committed r185677: <http://trac.webkit.org/changeset/185677>
All reviewed patches have been landed. Closing bug.