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diff --git a/chromium/third_party/blink/renderer/modules/p2p/port_allocator.h b/chromium/third_party/blink/renderer/modules/p2p/port_allocator.h
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+++ b/chromium/third_party/blink/renderer/modules/p2p/port_allocator.h
@@ -0,0 +1,62 @@
+// Copyright (c) 2012 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef THIRD_PARTY_BLINK_RENDERER_MODULES_P2P_PORT_ALLOCATOR_H_
+#define THIRD_PARTY_BLINK_RENDERER_MODULES_P2P_PORT_ALLOCATOR_H_
+
+#include <memory>
+
+#include "base/macros.h"
+#include "base/memory/scoped_refptr.h"
+#include "third_party/blink/renderer/modules/modules_export.h"
+#include "third_party/webrtc/p2p/client/basic_port_allocator.h"
+#include "url/gurl.h"
+
+namespace blink {
+
+class P2PSocketDispatcher;
+
+class MODULES_EXPORT P2PPortAllocator : public cricket::BasicPortAllocator {
+ public:
+  struct Config {
+    // Enable non-proxied UDP-based transport when set to true. When set to
+    // false, it effectively disables all UDP traffic until UDP-supporting proxy
+    // RETURN is available in the future.
+    bool enable_nonproxied_udp = true;
+
+    // Request binding to individual NICs. Whether multiple routes is allowed is
+    // subject to the permission check on mic/camera. When specified as false or
+    // the permission request is denied, it still uses the default local address
+    // to generate a single local candidate. TODO(guoweis): Rename this to
+    // |request_multiple_routes|.
+    bool enable_multiple_routes = true;
+
+    // Enable exposing the default local address when set to true. This is
+    // only in effect when the |enable_multiple_routes| is false or the
+    // permission check of mic/camera is denied.
+    bool enable_default_local_candidate = true;
+  };
+
+  P2PPortAllocator(const scoped_refptr<P2PSocketDispatcher>& socket_dispatcher,
+                   std::unique_ptr<rtc::NetworkManager> network_manager,
+                   rtc::PacketSocketFactory* socket_factory,
+                   const Config& config,
+                   const GURL& origin);
+  ~P2PPortAllocator() override;
+
+  // Will also initialize the network manager passed into the constructor.
+  void Initialize() override;
+
+ private:
+  std::unique_ptr<rtc::NetworkManager> network_manager_;
+  scoped_refptr<P2PSocketDispatcher> socket_dispatcher_;
+  Config config_;
+  GURL origin_;
+
+  DISALLOW_COPY_AND_ASSIGN(P2PPortAllocator);
+};
+
+}  // namespace blink
+
+#endif  // THIRD_PARTY_BLINK_RENDERER_MODULES_P2P_PORT_ALLOCATOR_H_