[chromedriver] Use hasTouchScreen capability to test for synthetic gestures in test.

chrome/test/chromedriver/test/run_py_tests.py

 #!/usr/bin/env python
 # Copyright 2013 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.
 
 """End to end tests for ChromeDriver."""
 
 import base64
 import json
 import math
@@ skipping 1027 matching lines @@
 
   def testBrowserDoesntSupportSyntheticGestures(self):
     # Current versions of stable and beta channel Chrome for Android do not
     # support synthetic gesture commands in DevTools, so touch action tests have
     # been disabled for chrome_stable and chrome_beta.
     # TODO(samuong): when this test starts failing, re-enable touch tests and
     # delete this test.
     if _ANDROID_PACKAGE_KEY:
       packages = ['chrome_stable', 'chrome_beta', 'chromedriver_webview_shell']
       if _ANDROID_PACKAGE_KEY in packages:
-        self.assertRaisesRegexp(RuntimeError,
-                                'Server returned error: Not Implemented',
-                                self._driver.TouchPinch, 1, 2, 3.0)
+        self.assertFalse(self._driver.capabilities['hasTouchScreen'])
 
   def testHasTouchScreen(self):
     self.assertIn('hasTouchScreen', self._driver.capabilities)
     if _ANDROID_PACKAGE_KEY:
       self.assertTrue(self._driver.capabilities['hasTouchScreen'])
     else:
       self.assertFalse(self._driver.capabilities['hasTouchScreen'])
 
   def testSwitchesToTopFrameAfterNavigation(self):
     self._driver.Load(self.GetHttpUrlForFile('/chromedriver/outer.html'))
@@ skipping 543 matching lines @@
 
   all_tests_suite = unittest.defaultTestLoader.loadTestsFromModule(
       sys.modules[__name__])
   tests = unittest_util.FilterTestSuite(all_tests_suite, options.filter)
   ChromeDriverTest.GlobalSetUp()
   MobileEmulationCapabilityTest.GlobalSetUp()
   result = unittest.TextTestRunner(stream=sys.stdout, verbosity=2).run(tests)
   ChromeDriverTest.GlobalTearDown()
   MobileEmulationCapabilityTest.GlobalTearDown()
   sys.exit(len(result.failures) + len(result.errors))