1 files changed, 67 insertions, 0 deletions
diff --git a/third_party/libwebrtc/api/ice_transport_factory.cc b/third_party/libwebrtc/api/ice_transport_factory.cc
new file mode 100644
index 0000000000..e88ac183fa
--- /dev/null
+++ b/third_party/libwebrtc/api/ice_transport_factory.cc
@@ -0,0 +1,67 @@
+/*
+ *  Copyright 2019 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.
+ */
+
+#include "api/ice_transport_factory.h"
+
+#include <memory>
+#include <utility>
+
+#include "api/make_ref_counted.h"
+#include "p2p/base/ice_transport_internal.h"
+#include "p2p/base/p2p_constants.h"
+#include "p2p/base/p2p_transport_channel.h"
+#include "p2p/base/port_allocator.h"
+#include "rtc_base/thread.h"
+
+namespace webrtc {
+
+namespace {
+
+// This implementation of IceTransportInterface is used in cases where
+// the only reference to the P2PTransport will be through this class.
+// It must be constructed, accessed and destroyed on the signaling thread.
+class IceTransportWithTransportChannel : public IceTransportInterface {
+ public:
+  IceTransportWithTransportChannel(
+      std::unique_ptr<cricket::IceTransportInternal> internal)
+      : internal_(std::move(internal)) {}
+
+  ~IceTransportWithTransportChannel() override {
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+  }
+
+  cricket::IceTransportInternal* internal() override {
+    RTC_DCHECK_RUN_ON(&thread_checker_);
+    return internal_.get();
+  }
+
+ private:
+  const SequenceChecker thread_checker_{};
+  const std::unique_ptr<cricket::IceTransportInternal> internal_
+      RTC_GUARDED_BY(thread_checker_);
+};
+
+}  // namespace
+
+rtc::scoped_refptr<IceTransportInterface> CreateIceTransport(
+    cricket::PortAllocator* port_allocator) {
+  IceTransportInit init;
+  init.set_port_allocator(port_allocator);
+  return CreateIceTransport(std::move(init));
+}
+
+rtc::scoped_refptr<IceTransportInterface> CreateIceTransport(
+    IceTransportInit init) {
+  return rtc::make_ref_counted<IceTransportWithTransportChannel>(
+      cricket::P2PTransportChannel::Create(
+          "", cricket::ICE_CANDIDATE_COMPONENT_RTP, std::move(init)));
+}
+
+}  // namespace webrtc