| Index: presubmit_canned_checks.py
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| diff --git a/presubmit_canned_checks.py b/presubmit_canned_checks.py
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| index b3d36199ff04e7868fa25bf7b6d5abc203c448b6..40df31a59d60bb2bd9f5006f3cf9641652456f0d 100644
 | 
| --- a/presubmit_canned_checks.py
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| +++ b/presubmit_canned_checks.py
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| @@ -626,10 +626,13 @@ def CheckBuildbotPendingBuilds(input_api, output_api, url, max_pendings,
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|    return []
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|  
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|  
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| -def CheckOwners(input_api, output_api, source_file_filter=None):
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| +def CheckOwners(input_api, output_api, email_regexp=None,
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| +    source_file_filter=None):
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|    affected_files = set([f.LocalPath() for f in
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|        input_api.change.AffectedFiles(source_file_filter)])
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|    owners_db = input_api.owners_db
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| +  if email_regexp:
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| +    owners_db.email_regexp = input_api.re.compile(email_regexp)
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|  
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|    if input_api.is_committing and input_api.tbr:
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|      return [output_api.PresubmitNotifyResult(
 | 
| 
 |