Update WATCHLISTS for chromedriver

NOTRY=true

Change-Id: I74bbe79587c3fada031bc3f645a6169b73cbb948
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1656113
Auto-Submit: John Chen <johnchen@chromium.org>
Reviewed-by: Caleb Rouleau <crouleau@chromium.org>
Commit-Queue: Caleb Rouleau <crouleau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#668536}

WATCHLISTS

@@ -717,8 +717,10 @@
     'chromedriver': {
       'filepath': 'chrome/test/chromedriver|'\
                   'chrome/test/data/chromedriver|'\
-                  'third_party/webdriver|'\
-                  'third_party/blink/renderer/devtools/front_end/emulated_devices/module.json'
+                  'third_party/blink/renderer/devtools/front_end/emulated_devices/module.json|'\
+                  'third_party/blink/web_tests/external/wpt/webdriver|'\
+                  'third_party/blink/web_tests/WebDriverExpectations|'\
+                  'third_party/webdriver'
     },
     'chromeos': {
       'filepath': 'chromeos/',