Allow server sockets to rebind to same port if there is nothing actively listening on that port.

content/browser/renderer_host/p2p/socket_host_tcp_server_unittest.cc

Index: content/browser/renderer_host/p2p/socket_host_tcp_server_unittest.cc
diff --git a/content/browser/renderer_host/p2p/socket_host_tcp_server_unittest.cc b/content/browser/renderer_host/p2p/socket_host_tcp_server_unittest.cc
index 87f3ab4921254adfeb5390ead15c070c76cb6817..ce7710274a49a318eab249c5418e1bd5529b9c0a 100644
--- a/content/browser/renderer_host/p2p/socket_host_tcp_server_unittest.cc
+++ b/content/browser/renderer_host/p2p/socket_host_tcp_server_unittest.cc
@@ -46,6 +46,9 @@ class FakeServerSocket : public net::ServerSocket {
   }
 
   // net::ServerSocket implementation.
+  virtual void AllowAddressReuse() {
+  }
+
   virtual int Listen(const net::IPEndPoint& address, int backlog) OVERRIDE {
     local_address_ = address;
     listening_ = true;