Use nonblocking IO mode as default for WebRTC

content/browser/renderer_host/p2p/socket_host_udp.cc

Index: content/browser/renderer_host/p2p/socket_host_udp.cc
diff --git a/content/browser/renderer_host/p2p/socket_host_udp.cc b/content/browser/renderer_host/p2p/socket_host_udp.cc
index f54dc787b7fbf33101c4aded928a84ca13837df0..5137972ebb0d9edb3d6f02cfd820135a39caaff1 100644
--- a/content/browser/renderer_host/p2p/socket_host_udp.cc
+++ b/content/browser/renderer_host/p2p/socket_host_udp.cc
@@ -98,11 +98,7 @@ P2PSocketHostUdp::P2PSocketHostUdp(IPC::Sender* message_sender,
   net::UDPServerSocket* socket = new net::UDPServerSocket(
       GetContentClient()->browser()->GetNetLog(), net::NetLog::Source());
 #if defined(OS_WIN)
-  // If configured for finch experiment, use nonblocking IO.
-  if (base::FieldTrialList::FindFullName("WebRTC-UDPSocketNonBlockingIO") ==
-      "Enabled") {
-    socket->UseNonBlockingIO();
-  }
+  socket->UseNonBlockingIO();
 #endif
   socket_.reset(socket);
 }