Add FlexfecReceiveStream.

webrtc/call/flexfec_receive_stream.h

Index: webrtc/call/flexfec_receive_stream.h
diff --git a/webrtc/call/flexfec_receive_stream.h b/webrtc/call/flexfec_receive_stream.h
new file mode 100644
index 0000000000000000000000000000000000000000..19bb9f873bcf97fa061770468dc16d216c6d7560
--- /dev/null
+++ b/webrtc/call/flexfec_receive_stream.h
@@ -0,0 +1,53 @@
+/*
+ *  Copyright (c) 2016 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_FLEXFEC_RECEIVE_STREAM_H_
+#define WEBRTC_CALL_FLEXFEC_RECEIVE_STREAM_H_
+
+#include <memory>
+#include <string>
+
+#include "webrtc/api/call/flexfec_receive_stream.h"
+#include "webrtc/base/basictypes.h"
+#include "webrtc/base/criticalsection.h"
+#include "webrtc/modules/rtp_rtcp/include/flexfec_receiver.h"
+
+namespace webrtc {
+
+namespace internal {
+
+class FlexfecReceiveStream : public webrtc::FlexfecReceiveStream {
+ public:
+  FlexfecReceiveStream(Config configuration,
+                       RecoveredPacketReceiver* recovered_packet_callback);
+  ~FlexfecReceiveStream();
+
+  const Config& config() const { return config_; }
+
+  bool AddAndProcessReceivedPacket(const uint8_t* packet, size_t length);
+
+  // Implements webrtc::FlexfecReceiveStream.
+  void Start() override;
+  void Stop() override;
+  Stats GetStats() const override;
+
+ private:
+  rtc::CriticalSection crit_;
+  bool started_ GUARDED_BY(crit_);
+
+  Config config_;
+  const std::unique_ptr<FlexfecReceiver> receiver_;
+};
+
+}  // namespace internal
+
+}  // namespace webrtc
+
+#endif  // WEBRTC_CALL_FLEXFEC_RECEIVE_STREAM_H_