virtual MediaKeyException cancelKeyRequest(const WebString& keySystem, const WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupported; }
virtual void setContentDecryptionModule(WebContentDecryptionModule* cdm) { }
virtual MediaKeyException cancelKeyRequest(const WebString& keySystem, const WebString& sessionId) { return MediaKeyExceptionKeySystemNotSupported; }
virtual void setContentDecryptionModule(WebContentDecryptionModule* cdm) { }