Fix data for api.ServiceWorkerRegistration.showNotification (#14421)
Fix data for api.ServiceWorkerRegistration.showNotification (#14421)

This was shipped together with PushManager and PushSubscription:
https://chromium.googlesource.com/chromium/src/+/23f1b21f73d8dd7fb32a62067b623686c7623c51

Chrome 42 confirmed by testing:
https://mdn-bcd-collector.appspot.com/tests/api/ServiceWorkerRegistration/showNotification

Also update the WebView bug to a more specific one.
mdn/browser-compat-data,chrisdavidmills/browser-compat-data,mdn/browser-compat-data,chrisdavidmills/browser-compat-data