Update from https://crrev.com/305340

tools/valgrind/chrome_tests.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.
 
 ''' Runs various chrome tests through valgrind_test.py.'''
 
 import glob
 import logging
 import multiprocessing
@@ skipping 452 matching lines @@
     # Disabling all unit tests
     # Problems reappeared after r119922
     if common.IsMac() and (self._options.valgrind_tool == "memcheck"):
       logging.warning("unit_tests are disabled for memcheck on MacOS.")
       return 0;
     return self.SimpleTest("chrome", "unit_tests")
 
   def TestUIBaseUnit(self):
     return self.SimpleTest("chrome", "ui_base_unittests")
 
+  def TestUIChromeOS(self):
+    return self.SimpleTest("chrome", "ui_chromeos_unittests")
+
   def TestURL(self):
     return self.SimpleTest("chrome", "url_unittests")
 
   def TestViews(self):
     return self.SimpleTest("views", "views_unittests")
 
 
   # Valgrind timeouts are in seconds.
   UI_VALGRIND_ARGS = ["--timeout=14400", "--trace_children", "--indirect"]
   # UI test timeouts are in milliseconds.
@@ skipping 222 matching lines @@
     "ppapi": TestPPAPI,          "ppapi_unittests": TestPPAPI,
     "printing": TestPrinting,    "printing_unittests": TestPrinting,
     "remoting": TestRemoting,    "remoting_unittests": TestRemoting,
     "safe_browsing": TestSafeBrowsing, "safe_browsing_tests": TestSafeBrowsing,
     "sandbox": TestLinuxSandbox, "sandbox_linux_unittests": TestLinuxSandbox,
     "sql": TestSql,              "sql_unittests": TestSql,
     "sync": TestSync,            "sync_unit_tests": TestSync,
     "sync_integration_tests": TestSyncIntegration,
     "sync_integration": TestSyncIntegration,
     "ui_base_unit": TestUIBaseUnit,       "ui_base_unittests": TestUIBaseUnit,
+    "ui_chromeos": TestUIChromeOS, "ui_chromeos_unittests": TestUIChromeOS,
     "unit": TestUnit,            "unit_tests": TestUnit,
     "url": TestURL,              "url_unittests": TestURL,
     "views": TestViews,          "views_unittests": TestViews,
     "webkit": TestLayout,
   }
 
 
 def _main():
   parser = optparse.OptionParser("usage: %prog -b <dir> -t <test> "
                                  "[-t <test> ...]")
@@ skipping 67 matching lines @@
 
   for t in options.test:
     tests = ChromeTests(options, args, t)
     ret = tests.Run()
     if ret: return ret
   return 0
 
 
 if __name__ == "__main__":
   sys.exit(_main())