Fix instability in SSL client/server sockets

net/socket/ssl_server_socket_nss.cc

Index: net/socket/ssl_server_socket_nss.cc
diff --git a/net/socket/ssl_server_socket_nss.cc b/net/socket/ssl_server_socket_nss.cc
index bdcff2c1002aab343b04c8327ea970b7ec844524..0bb65bbb09f258657535c7ad890451ece5a8c588 100644
--- a/net/socket/ssl_server_socket_nss.cc
+++ b/net/socket/ssl_server_socket_nss.cc
@@ -535,7 +535,7 @@ bool SSLServerSocketNSS::DoTransportIO() {
   if (nss_bufs_ != NULL) {
     int nsent = BufferSend();
     int nreceived = BufferRecv();
-    network_moved = (nsent > 0 || nreceived >= 0);
+    network_moved = (nsent > 0 || nreceived > 0);
   }
   return network_moved;
 }
@@ -623,6 +623,11 @@ int SSLServerSocketNSS::DoReadLoop(int result) {
     rv = DoPayloadRead();
     network_moved = DoTransportIO();
   } while (rv == ERR_IO_PENDING && network_moved);
+
+  do {
+    network_moved = DoTransportIO();
+  } while (network_moved);
+
   return rv;
 }
 
@@ -647,6 +652,11 @@ int SSLServerSocketNSS::DoWriteLoop(int result) {
     rv = DoPayloadWrite();
     network_moved = DoTransportIO();
   } while (rv == ERR_IO_PENDING && network_moved);
+
+  do {
+    network_moved = DoTransportIO();
+  } while (network_moved);
+
   return rv;
 }