Update from https://crrev.com/305340

net/websockets/websocket_handshake_handler.h

Index: net/websockets/websocket_handshake_handler.h
diff --git a/net/websockets/websocket_handshake_handler.h b/net/websockets/websocket_handshake_handler.h
deleted file mode 100644
index c65e6d9d14318d16f1e7fc57e50342755550c0e8..0000000000000000000000000000000000000000
--- a/net/websockets/websocket_handshake_handler.h
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2012 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 NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_HANDLER_H_
-#define NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_HANDLER_H_
-
-#include <string>
-
-namespace net {
-
-// Given a WebSocket handshake challenge, compute the correct response.
-// TODO(ricea): There should probably be a test for this.
-void ComputeSecWebSocketAccept(const std::string& key,
-                               std::string* accept);
-
-}  // namespace net
-
-#endif  // NET_WEBSOCKETS_WEBSOCKET_HANDSHAKE_HANDLER_H_