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