Add a SetDoNotFragment() method to DatagramSocket, and call this for

net/socket/ssl_server_socket_impl.cc

Index: net/socket/ssl_server_socket_impl.cc
diff --git a/net/socket/ssl_server_socket_impl.cc b/net/socket/ssl_server_socket_impl.cc
index 0bc3da7c59b7557d0ca1ba077e4b77c67758dcf2..01b76268fd6002d4db64b4bac1ec23abcf7f978e 100644
--- a/net/socket/ssl_server_socket_impl.cc
+++ b/net/socket/ssl_server_socket_impl.cc
@@ -77,6 +77,7 @@ class SSLServerSocketImpl : public SSLServerSocket {
             const CompletionCallback& callback) override;
   int SetReceiveBufferSize(int32_t size) override;
   int SetSendBufferSize(int32_t size) override;
+  int SetDoNotFragment(bool do_not_fragment) override;
 
   // StreamSocket implementation.
   int Connect(const CompletionCallback& callback) override;
@@ -303,6 +304,10 @@ int SSLServerSocketImpl::SetSendBufferSize(int32_t size) {
   return transport_socket_->SetSendBufferSize(size);
 }
 
+int SSLServerSocketImpl::SetDoNotFragment(bool do_not_fragment) {
+  return transport_socket_->SetDoNotFragment(do_not_fragment);
+}
+
 int SSLServerSocketImpl::Connect(const CompletionCallback& callback) {
   NOTIMPLEMENTED();
   return ERR_NOT_IMPLEMENTED;