Add chrome.loadAsync capability to ChromeDriver, which allows the user not to

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 75 matching lines @@
                             const gfx::Point& location,
                             const std::vector<FilePath::StringType>& paths,
                             Error** error);
 
   // Captures a snapshot of the tab to the specified path.  The  PNG will
   // contain the entire page, including what is not in the current view
   // on the  screen.
   void CaptureEntirePageAsPNG(int tab_id, const FilePath& path, Error** error);
 
   void NavigateToURL(int tab_id, const std::string& url, Error** error);
+  void NavigateToURLAsync(int tab_id, const std::string& url, Error** error);
   void GoForward(int tab_id, Error** error);
   void GoBack(int tab_id, Error** error);
   void Reload(int tab_id, Error** error);
 
   void GetCookies(const std::string& url,
                   base::ListValue** cookies,
                   Error** error);
   void DeleteCookie(const std::string& url,
                     const std::string& cookie_name,
                     Error** error);
@@ skipping 62 matching lines @@
   scoped_ptr<ProxyLauncher> launcher_;
 
   DISALLOW_COPY_AND_ASSIGN(Automation);
 };
 
 }  // namespace webdriver
 
 DISABLE_RUNNABLE_METHOD_REFCOUNT(webdriver::Automation);
 
 #endif  // CHROME_TEST_WEBDRIVER_AUTOMATION_H_