Update error-handling logic in ChromiumPacketSocketFactory.

remoting/jingle_glue/socket_util.h

+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef REMOTING_JINGLE_GLUE_SOCKET_UTIL_H_
+#define REMOTING_JINGLE_GLUE_SOCKET_UTIL_H_
+
+namespace remoting {
+
+// Enum for different actions that can be taken after sendto() returns an error.
+enum SocketErrorAction {
+  SOCKET_ERROR_ACTION_FAIL,
+  SOCKET_ERROR_ACTION_IGNORE,
+  SOCKET_ERROR_ACTION_RETRY,
+};
+
+// Returns true if |error| must be ignored when returned from sendto(). |retry|
+// is set set when sentto() should be called for the same packet again.
+SocketErrorAction GetSocketErrorAction(int error);
+
+}  // namespace remoting
+
+#endif  // REMOTING_JINGLE_GLUE_SOCKET_UTIL_H_