Bind a socket to a network if the network handle is set.

webrtc/base/virtualsocketserver.cc

Index: webrtc/base/virtualsocketserver.cc
diff --git a/webrtc/base/virtualsocketserver.cc b/webrtc/base/virtualsocketserver.cc
index c6d402f1f3f27877b3e13a0afba8aa6c613da9ce..1fcf4b5c4aa68742dd4126c55f5630c51f659191 100644
--- a/webrtc/base/virtualsocketserver.cc
+++ b/webrtc/base/virtualsocketserver.cc
@@ -164,6 +164,10 @@ int VirtualSocket::Connect(const SocketAddress& addr) {
   return InitiateConnect(addr, true);
 }
 
+int VirtualSocket::BindToNetwork(NetworkHandle handle) {
+  return 0;
+}
+
 int VirtualSocket::Close() {
   if (!local_addr_.IsNil() && bound_) {
     // Remove from the binding table.