Private API for extensions like ssh-client that need access to TCP.

chrome/browser/chromeos/web_socket_proxy_controller.h

 // Copyright (c) 2011 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_
 #pragma once
 
+#include <string>
+
 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 bool CheckCredentials(
+      const std::string& extension_id,
+      const std::string& hostname,
+      unsigned short port,
+      ConnectionFlags);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_WEB_SOCKET_PROXY_CONTROLLER_H_