def GetObsoleteXmlErrors(input_api, output_api, cwd, results):
    'Validates all histograms in the file are obsolete.'
    exit_code = input_api.subprocess.call([input_api.python_executable, 'validate_obsolete_histograms.py'], cwd=cwd)
    if (exit_code != 0):
        error_msg = 'histograms_xml/obsolete_histograms.xml contains non-obsolete histograms, please run validate_obsolete_histograms.py to fix.'
        results.append(output_api.PresubmitError(error_msg))
Validates all histograms in the file are obsolete.
def GetObsoleteXmlErrors(input_api, output_api, cwd, results):
    
    exit_code = input_api.subprocess.call([input_api.python_executable, 'validate_obsolete_histograms.py'], cwd=cwd)
    if (exit_code != 0):
        error_msg = 'histograms_xml/obsolete_histograms.xml contains non-obsolete histograms, please run validate_obsolete_histograms.py to fix.'
        results.append(output_api.PresubmitError(error_msg))