Allow mocking SendSideCongestionController for Call tests.

webrtc/call/fake_rtp_transport_controller_send.h

+/*
+ *  Copyright (c) 2015 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 WEBRTC_CALL_FAKE_RTP_TRANSPORT_CONTROLLER_SEND_H_
+#define WEBRTC_CALL_FAKE_RTP_TRANSPORT_CONTROLLER_SEND_H_
+
+#include "webrtc/call/rtp_transport_controller_send_interface.h"
+#include "webrtc/modules/congestion_controller/include/send_side_congestion_controller.h"
+#include "webrtc/modules/pacing/packet_router.h"
+
+namespace webrtc {
+
+class FakeRtpTransportControllerSend
+    : public RtpTransportControllerSendInterface {
+ public:
+  explicit FakeRtpTransportControllerSend(
+      SendSideCongestionController* send_side_cc)
+      : send_side_cc_(send_side_cc) {
+    RTC_DCHECK(send_side_cc);
+  }
+
+  PacketRouter* packet_router() override { return &packet_router_; }
+
+  SendSideCongestionController* send_side_cc() override {
+    return send_side_cc_;
+  }
+
+  TransportFeedbackObserver* transport_feedback_observer() override {
+    return send_side_cc_;
+  }
+
+  RtpPacketSender* packet_sender() override { return send_side_cc_->pacer(); }
+
+ private:
+  PacketRouter packet_router_;
+  SendSideCongestionController* send_side_cc_;
+};
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_CALL_FAKE_RTP_TRANSPORT_CONTROLLER_SEND_H_