diff --git a/webrtc/base/win32socketinit.h b/webrtc/base/win32socketinit.h
new file mode 100644
index 0000000..46d27cb
--- /dev/null
+++ b/webrtc/base/win32socketinit.h
@@ -0,0 +1,20 @@
+/*
+ *  Copyright 2009 The WebRTC Project Authors. All rights reserved.
+ *
+ *  Use of this source code is governed by a BSD-style license
+ *  that can be found in the LICENSE file in the root of the source
+ *  tree. An additional intellectual property rights grant can be found
+ *  in the file PATENTS.  All contributing project authors may
+ *  be found in the AUTHORS file in the root of the source tree.
+ */
+
+#ifndef WEBRTC_BASE_WIN32SOCKETINIT_H_
+#define WEBRTC_BASE_WIN32SOCKETINIT_H_
+
+namespace rtc {
+
+void EnsureWinsockInit();
+
+}  // namespace rtc
+
+#endif  // WEBRTC_BASE_WIN32SOCKETINIT_H_