Add 2 tests for history.

chrome/test/pyautolib/pyautolib.i

 // Copyright (c) 2010 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.
 //
 // Swig Interface for PyAuto.
 // PyAuto makes the Automation Proxy interface available in Python
 //
 // Running swig as:
 //   swig -python -c++ chrome/test/pyautolib/pyautolib.i
 // would generate pyautolib.py, pyautolib_wrap.cxx
@@ skipping 87 matching lines @@
 // TabProxy
 %feature("docstring", "Proxy handle to a tab.") TabProxy;
 %nodefaultctor TabProxy;
 %nodefaultdtor TabProxy;
 class TabProxy {
  public:
   // Navigation
   %feature("docstring", "Navigates to a given GURL. "
            "Blocks until the navigation completes. ") NavigateToURL;
   AutomationMsg_NavigationResponseValues NavigateToURL(const GURL& url);
+  %feature("docstring", "Navigates to a given GURL. Blocks until the given "
+           "number of navigations complete.")
+      NavigateToURLBlockUntilNavigationsComplete;
+  AutomationMsg_NavigationResponseValues
+      NavigateToURLBlockUntilNavigationsComplete(
+          const GURL& url, int number_of_navigations);
   %feature("docstring", "Equivalent to hitting the Back button. "
            "Blocks until navigation completes.") GoBack;
   AutomationMsg_NavigationResponseValues GoBack();
   %feature("docstring", "Equivalent to hitting the Forward button. "
            "Blocks until navigation completes.") GoForward;
   AutomationMsg_NavigationResponseValues GoForward();
   %feature("docstring", "Equivalent to hitting the Reload button. "
            "Blocks until navigation completes.") Reload;
   AutomationMsg_NavigationResponseValues Reload();
   %feature("docstring", "Closes the tab. Supply True to wait "
@@ skipping 191 matching lines @@
 
   // Meta-method
   %feature("docstring", "Send a sync JSON request to Chrome.  "
                         "Returns a JSON dict as a response.  "
                         "Internal method.")
       _SendJSONRequest;
   std::string _SendJSONRequest(int window_index, std::string request);
 
 };