void addKey(
String keySystem,
Uint8List key,
[Uint8List initData,
String sessionId]
)

Not documented.

Source

void addKey(String keySystem, Uint8List key, [Uint8List initData, String sessionId]) {
  if (initData != null) {
    _blink.BlinkHTMLMediaElement.instance.webkitAddKey_Callback_4_(unwrap_jso(this), keySystem, key, initData, sessionId);
    return;
  }
  _blink.BlinkHTMLMediaElement.instance.webkitAddKey_Callback_2_(unwrap_jso(this), keySystem, key);
  return;
}