Delete old chromedriver code, and remove mongoose webserver.

chrome/test/webdriver/webdriver_switches.h

Index: chrome/test/webdriver/webdriver_switches.h
diff --git a/chrome/test/webdriver/webdriver_switches.h b/chrome/test/webdriver/webdriver_switches.h
deleted file mode 100644
index 639d1b32136b32cb33b504dc29fe9983279d1c81..0000000000000000000000000000000000000000
--- a/chrome/test/webdriver/webdriver_switches.h
+++ /dev/null
@@ -1,14 +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 CHROME_TEST_WEBDRIVER_WEBDRIVER_SWITCHES_H_
-#define CHROME_TEST_WEBDRIVER_WEBDRIVER_SWITCHES_H_
-
-namespace webdriver {
-
-extern const char kEnableKeepAlive[];
-
-}  // namespace webdriver
-
-#endif  // CHROME_TEST_WEBDRIVER_WEBDRIVER_SWITCHES_H_