ChromeDriver should be able to focus on a frame using its frame element,

chrome/test/webdriver/WEBDRIVER_TESTS

 # 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.
 #
 # This file lists the webdriver tests that run as a part of the functional test
 # suite.
 #
 # Tests can be enabled on a per-platform basis. Tests not listed here will
 # not be run.
 #
 # Test names can be specified in any of the following ways:
 # 1. as a module, in which case all tests in that module will be run
 #      example: 'test_basic'
 # 2. or as a test case, in which case all tess in that test case will be run
 #      example: 'test_basic.SimpleTest'
 # 3. or as an individual test
 #      example: 'test_basic.SimpleTest.testCanOpenGoogle'
 #
 # Tests beginning with '-' will be excluded.  This can be used to enforce
 # exclusions for a particular platform.
 
 # Most of these tests are disabled because they involve not yet implemented
 # features. See bug 71237.
 {
   'all': [
     'children_finding_tests',
     'cookie_tests',
     # Automation proxy only returns cookie name=value pairs.
     '-cookie_tests.CookieTest.testAddCookie',
-    '-cookie_tests.CookieTest.testGetGoogleCookie',
 #   'correct_event_firing_tests',
     'driver_element_finding_test',
     'element_attribute_tests',
 #   'executing_async_javascript_test',
     'executing_javascript_test',
     'form_handling_tests',
     # This test is flaky, probably because of form submission race.
     '-form_handling_tests.FormHandlingTests.testShouldClickOnSubmitInputElements',
     'frame_switching_tests',
     'implicit_waits_tests',
@@ skipping 28 matching lines @@
 
   ],
 
   'mac': [
 
   ],
 
   'linux': [
   ],
 }