extensions: Remove chrome.webSocketProxyPrivate API

chrome/browser/chromeos/web_socket_proxy_controller.h

-// 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 CHROME_BROWSER_CHROMEOS_WEB_SOCKET_PROXY_CONTROLLER_H_
-#define CHROME_BROWSER_CHROMEOS_WEB_SOCKET_PROXY_CONTROLLER_H_
-
-#include <string>
-#include <vector>
-
-namespace chromeos {
-
-// Controls webproxy to TCP service.
-class WebSocketProxyController {
- public:
-  enum ConnectionFlags {
-    PLAIN_TCP    = 0,
-    TLS_OVER_TCP = 1 << 0
-  };
-
-  // Can be called on any thread. Subsequent calls are cheap and do nothing.
-  static void Initiate();
-
-  // All methods can be called on any thread.
-  static void Shutdown();
-  static bool IsInitiated();
-  static int GetPort();  // Returns port listening websocket connections.
-};
-
-}  // namespace chromeos
-
-#endif  // CHROME_BROWSER_CHROMEOS_WEB_SOCKET_PROXY_CONTROLLER_H_