|  | /* | 
|  | *  Copyright 2020 The WebRTC project authors. All Rights Reserved. | 
|  | * | 
|  | *  Use of this source code is governed by a BSD-style license | 
|  | *  that can be found in the LICENSE file in the root of the source | 
|  | *  tree. An additional intellectual property rights grant can be found | 
|  | *  in the file PATENTS.  All contributing project authors may | 
|  | *  be found in the AUTHORS file in the root of the source tree. | 
|  | */ | 
|  |  | 
|  | #ifndef API_SET_LOCAL_DESCRIPTION_OBSERVER_INTERFACE_H_ | 
|  | #define API_SET_LOCAL_DESCRIPTION_OBSERVER_INTERFACE_H_ | 
|  |  | 
|  | #include "api/ref_count.h" | 
|  | #include "api/rtc_error.h" | 
|  |  | 
|  | namespace webrtc { | 
|  |  | 
|  | // OnSetLocalDescriptionComplete() invokes as soon as | 
|  | // PeerConnectionInterface::SetLocalDescription() operation completes, allowing | 
|  | // the observer to examine the effects of the operation without delay. | 
|  | class SetLocalDescriptionObserverInterface : public RefCountInterface { | 
|  | public: | 
|  | // On success, `error.ok()` is true. | 
|  | virtual void OnSetLocalDescriptionComplete(RTCError error) = 0; | 
|  | }; | 
|  |  | 
|  | }  // namespace webrtc | 
|  |  | 
|  | #endif  // API_SET_LOCAL_DESCRIPTION_OBSERVER_INTERFACE_H_ |