Adding pyauto test: browser still function after browser crash

chrome/test/functional/chromeos_browser.py

 #!/usr/bin/env python
 # 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.
 
 import pyauto_functional # pyauto_functional must come before pyauto.
 import pyauto
 
 
 class ChromeosBrowserTest(pyauto.PyUITest):
 
   def testCannotCloseLastIncognito(self):
     """Verify that last incognito window cannot be closed if it's the
     last window"""
     self.RunCommand(pyauto.IDC_NEW_INCOGNITO_WINDOW)
     self.assertTrue(self.GetBrowserInfo()['windows'][1]['incognito'],
                     msg='Incognito window is not displayed')
 
     self.CloseBrowserWindow(0)
     info = self.GetBrowserInfo()['windows']
     self.assertEqual(1, len(info))
     url = info[0]['tabs'][0]['url']
     self.assertEqual('chrome://newtab/', url,
                      msg='Unexpected URL: %s' % url)
     self.assertTrue(info[0]['incognito'],
                     msg='Incognito window is not displayed.')
 
+  def testCrashBrowser(self):
+    """Verify that after broswer crash is recovered, user can still navigate
+    to other URL."""
+    crash_url = 'about:inducebrowsercrashforrealz'
+    self.NavigateToURL(crash_url)
+    url = self.GetHttpURLForDataPath('english_page.html')
+    self.NavigateToURL(url)
+    self.assertEqual('This page is in English', self.GetActiveTabTitle())
+
   def testFullScreen(self):
     """Verify that a browser window can enter and exit full screen mode."""
     self.ApplyAccelerator(pyauto.IDC_FULLSCREEN)
     self.assertTrue(self.WaitUntil(lambda:
                     self.GetBrowserInfo()['windows'][0]['fullscreen']),
                     msg='Full Screen is not displayed.')
 
     self.ApplyAccelerator(pyauto.IDC_FULLSCREEN)
     self.assertTrue(self.WaitUntil(lambda: not
                     self.GetBrowserInfo()['windows'][0]['fullscreen']),
                     msg='Normal screen is not displayed.')
 
 
 if __name__ == '__main__':
   pyauto_functional.Main()