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        <link:definition>9955530 - Disclosure - Independent Operator Notes and Independent Operator Receivables - Schedule of Allowance for Credit Loss Activity (Details)</link:definition>
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        <link:definition>9955532 - Disclosure - Independent Operator Notes and Independent Operator Receivables - Credit Quality Indicators (Current Year) (Details)</link:definition>
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        <link:definition>9955533 - Disclosure - Independent Operator Notes and Independent Operator Receivables - Credit Quality Indicators (Prior Year) (Details)</link:definition>
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  <xs:element id="go_RestrictedStockUnitsRSUsAndPerformanceSharesUnitsPSUsMember" abstract="true" name="RestrictedStockUnitsRSUsAndPerformanceSharesUnitsPSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_PerformanceSharesAndRestrictedStockUnitsRSUsMember" abstract="true" name="PerformanceSharesAndRestrictedStockUnitsRSUsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_ReportableSegmentMember" abstract="true" name="ReportableSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_CostOfGoodsAndServicesSoldAdjusted" abstract="false" name="CostOfGoodsAndServicesSoldAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_InterestIncomeAndCapitalizedInterestCosts" abstract="false" name="InterestIncomeAndCapitalizedInterestCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_InterestExpenseNonoperatingAdjusted" abstract="false" name="InterestExpenseNonoperatingAdjusted" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_BBGOAcquisitionMember" abstract="true" name="BBGOAcquisitionMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_BusinessCombinationAcquisitionAndIntegrationRelatedCosts" abstract="false" name="BusinessCombinationAcquisitionAndIntegrationRelatedCosts" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_BusinessAcquisitionProFormaRevenuePercentageOfConsolidatedAmount" abstract="false" name="BusinessAcquisitionProFormaRevenuePercentageOfConsolidatedAmount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="go_BusinessAcquisitionProFormaComprehensiveIncomeLossPercentageOfConsolidatedAmount" abstract="false" name="BusinessAcquisitionProFormaComprehensiveIncomeLossPercentageOfConsolidatedAmount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="go_BusinessAcquisitionProFormaNetIncomeLossPercentageOfConsolidatedAmount" abstract="false" name="BusinessAcquisitionProFormaNetIncomeLossPercentageOfConsolidatedAmount" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="go_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAcquiredIncludingGoodwill" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsAcquiredIncludingGoodwill" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedExpensesAndOtherLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedCompensation" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesAccruedCompensation" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesIncomeAndOtherTaxesPayable" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedCurrentLiabilitiesIncomeAndOtherTaxesPayable" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLeaseLiabilities" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedNoncurrentLiabilitiesLeaseLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="go_CurrentNumberOfLeasesExpectedToBeTerminatedUnderPlan" abstract="false" name="CurrentNumberOfLeasesExpectedToBeTerminatedUnderPlan" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="go_CashRestructuringChargesMember" abstract="true" name="CashRestructuringChargesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_LegalProfessionalAndOtherRestructuringCostsMember" abstract="true" name="LegalProfessionalAndOtherRestructuringCostsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_NonCashImpairmentAndDisposalOfLongLivedAssetsMember" abstract="true" name="NonCashImpairmentAndDisposalOfLongLivedAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="go_AndreaR.BortnerMember" abstract="true" name="AndreaR.BortnerMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
