Reset the BWE when the network changes

webrtc/base/networkroute.h

+/*
+ *  Copyright 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_BASE_NETWORKROUTE_H_
+#define WEBRTC_BASE_NETWORKROUTE_H_
+
+// TODO(honghaiz): Make a directory that describes the interfaces and structs
+// the media code can rely on and the network code can implement, and both can
+// depend on that, but not depend on each other. Then, move this file to that
+// directory.
+namespace cricket {
+
+struct NetworkRoute {
+  bool connected;
+  uint16_t local_network_id;
+  uint16_t remote_network_id;
+
+  NetworkRoute()
+      : connected(false), local_network_id(0), remote_network_id(0) {}
+
+  // The route is connected if the local and remote network ids are provided.
+  NetworkRoute(uint16_t local_net_id, uint16_t remote_net_id)
+      : connected(true),
+        local_network_id(local_net_id),
+        remote_network_id(remote_net_id) {}
+
+  bool operator==(const NetworkRoute& nr) const {
+    return connected == nr.connected &&
+           local_network_id == nr.local_network_id &&
+           remote_network_id == nr.remote_network_id;
+  }
+
+  bool operator!=(const NetworkRoute& nr) const { return !(*this == nr); }
+};
+}  // namespace cricket
+
+#endif  // WEBRTC_BASE_NETWORKROUTE_H_