extensions: Remove chrome.webSocketProxyPrivate API

chrome/browser/chromeos/web_socket_proxy_helper.cc

-// 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.
-
-#include "chrome/browser/chromeos/web_socket_proxy_helper.h"
-
-#include "base/logging.h"
-#include "base/strings/string_number_conversions.h"
-
-namespace chromeos {
-
-// static
-bool WebSocketProxyHelper::FetchPassportAddrNamePort(
-      uint8* begin, uint8* end,
-      std::string* passport, std::string* addr,
-      std::string* hostname, int* port) {
-  std::string input(begin, end);
-
-  // At first, get rid of a colon at the end.
-  if (input.empty() || input[input.length() - 1] != ':')
-    return false;
-  input.erase(input.length() - 1);
-
-  // Fetch the passport from the start.
-  if (!FetchToken(true, false, &input, passport) || passport->empty())
-    return false;
-
-  // Fetch the IP address from the start. Match '['-brackets if presented.
-  if (!FetchToken(true, true, &input, addr))
-    return false;
-
-  // Fetch the port number from the end.
-  std::string port_str;
-  if (!FetchToken(false, false, &input, &port_str) || port_str.empty() ||
-      !base::StringToInt(port_str, port) ||
-      *port <= 0 || *port >= (1<<16))
-    return false;
-
-  // The hostname is everything remained.
-  if (input.length() < 2 || input[input.length() - 1] != ':')
-    return false;
-  hostname->assign(input, 0, input.length() - 1);
-
-  return true;
-}
-
-// static
-bool WebSocketProxyHelper::FetchToken(bool forward,
-                                      bool match_brackets,
-                                      std::string* input,
-                                      std::string* token ) {
-  if (input->empty()) {
-    token->clear();
-  } else {
-    std::string separator =
-        (forward && match_brackets && input->at(0) == '[') ? "]:" : ":";
-    size_t pos = forward ? input->find(separator) : input->rfind(separator);
-    if (pos != std::string::npos) {
-      size_t start = forward ? 0 : pos + 1;
-      size_t end = forward ? pos : input->length();
-      token->assign(*input, start, end - start + separator.length() - 1);
-      input->erase(start, end - start + separator.length());
-    } else {
-      return false;
-    }
-  }
-  return true;
-}
-
-}  // namespace chromeos