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diff --git a/third_party/libwebrtc/api/voip/voip_network.h b/third_party/libwebrtc/api/voip/voip_network.h
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+/*
+ *  Copyright (c) 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_VOIP_VOIP_NETWORK_H_
+#define API_VOIP_VOIP_NETWORK_H_
+
+#include "api/array_view.h"
+#include "api/voip/voip_base.h"
+
+namespace webrtc {
+
+// VoipNetwork interface provides any network related interfaces such as
+// processing received RTP/RTCP packet from remote endpoint. This interface
+// requires a ChannelId created via VoipBase interface.
+class VoipNetwork {
+ public:
+  // The data received from the network including RTP header is passed here.
+  // Returns following VoipResult;
+  //  kOk - received RTP packet is processed.
+  //  kInvalidArgument - `channel_id` is invalid.
+  virtual VoipResult ReceivedRTPPacket(
+      ChannelId channel_id,
+      rtc::ArrayView<const uint8_t> rtp_packet) = 0;
+
+  // The data received from the network including RTCP header is passed here.
+  // Returns following VoipResult;
+  //  kOk - received RTCP packet is processed.
+  //  kInvalidArgument - `channel_id` is invalid.
+  virtual VoipResult ReceivedRTCPPacket(
+      ChannelId channel_id,
+      rtc::ArrayView<const uint8_t> rtcp_packet) = 0;
+
+ protected:
+  virtual ~VoipNetwork() = default;
+};
+
+}  // namespace webrtc
+
+#endif  // API_VOIP_VOIP_NETWORK_H_