Register the fb-* elements, bound to the SDK instance that
foo-webview-sdk exports.
Idempotent: tags already present in customElements keep their existing
constructor and are left out of the result. Every component uses the same
SDK instance, including elements registered earlier by another call.
Register the
fb-*elements, bound to the SDK instance thatfoo-webview-sdkexports.Idempotent: tags already present in
customElementskeep their existing constructor and are left out of the result. Every component uses the same SDK instance, including elements registered earlier by another call.