[Chromedriver] Re-Disable testShadowDomHover on HEAD

chrome/test/chromedriver/test/run_py_tests.py

Index: chrome/test/chromedriver/test/run_py_tests.py
diff --git a/chrome/test/chromedriver/test/run_py_tests.py b/chrome/test/chromedriver/test/run_py_tests.py
index 04bd89f7c7e81bea4c0b006b7f975fcd153b77c7..20efd310ed88fd9ebb762218126308ab53b9b16d 100755
--- a/chrome/test/chromedriver/test/run_py_tests.py
+++ b/chrome/test/chromedriver/test/run_py_tests.py
@@ -70,7 +70,7 @@ _VERSION_SPECIFIC_FILTER['HEAD'] = [
     # https://code.google.com/p/chromedriver/issues/detail?id=992
     'ChromeDownloadDirTest.testDownloadDirectoryOverridesExistingPreferences',
     # https://bugs.chromium.org/p/chromedriver/issues/detail?id=1503
-    'ChromeDriverTest.testShadowDomHover,
+    'ChromeDriverTest.testShadowDomHover',
 ]
 
 _OS_SPECIFIC_FILTER = {}