Enable check for non-gender neutral pronouns

R=danno@chromium.org
BUG=

Review-Url: https://codereview.chromium.org/2088393002
Cr-Commit-Position: refs/heads/master@{#37206}

PRESUBMIT.py

@@ -223,6 +223,8 @@ def _CommonChecks(input_api, output_api):
       input_api, output_api, source_file_filter=None))
   results.extend(input_api.canned_checks.CheckPatchFormatted(
       input_api, output_api))
+  results.extend(input_api.canned_checks.CheckGenderNeutral(
+      input_api, output_api))
   results.extend(_V8PresubmitChecks(input_api, output_api))
   results.extend(_CheckUnwantedDependencies(input_api, output_api))
   results.extend(