Fix minor issues in ChromeDriver.

chrome/test/webdriver/automation.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_TEST_WEBDRIVER_AUTOMATION_H_
 #define CHROME_TEST_WEBDRIVER_AUTOMATION_H_
 
 #include <map>
 #include <string>
 #include <vector>
@@ skipping 129 matching lines @@
   // server.
   void GetChromeDriverAutomationVersion(int* version, Error** error);
 
   // Waits for all tabs to stop loading.
   void WaitForAllTabsToStopLoading(Error** error);
 
  private:
   AutomationProxy* automation() const;
   Error* GetIndicesForTab(int tab_id, int* browser_index, int* tab_index);
   Error* CreateChromeError(const std::string& message);
+  Error* CompareVersion(int client_build_no,
+                        int client_patch_no,
+                        bool* is_newer_or_equal);
+  Error* CheckVersion(int client_build_no,
+                      int client_patch_no,
+                      const std::string& error_msg);
+  Error* CheckAlertsSupported();
+  Error* CheckAdvancedInteractionsSupported();
 
   scoped_ptr<ProxyLauncher> launcher_;
 
   DISALLOW_COPY_AND_ASSIGN(Automation);
 };
 
 }  // namespace webdriver
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(webdriver::Automation);
 
 #endif  // CHROME_TEST_WEBDRIVER_AUTOMATION_H_