Update Chrome Upstream flow to reflect new UI mocks

components/autofill/core/browser/autofill_experiments.h

Index: components/autofill/core/browser/autofill_experiments.h
diff --git a/components/autofill/core/browser/autofill_experiments.h b/components/autofill/core/browser/autofill_experiments.h
index 0ae7639e9a464c161274181dfef5306a0ead468b..0a2f5c3629d9020300797c4cdca3b5f81213bc33 100644
--- a/components/autofill/core/browser/autofill_experiments.h
+++ b/components/autofill/core/browser/autofill_experiments.h
@@ -34,6 +34,7 @@ extern const base::Feature kAutofillCreditCardLastUsedDateDisplay;
 extern const base::Feature kAutofillOfferLocalSaveIfServerCardManuallyEntered;
 extern const base::Feature kAutofillSuppressDisusedAddresses;
 extern const base::Feature kAutofillUpstreamRequestCvcIfMissing;
+extern const base::Feature kAutofillUpstreamShowNewUi;
 extern const base::Feature kAutofillUpstreamUseAutofillProfileComparator;
 extern const base::Feature kAutofillUpstreamUseNotRecentlyUsedAutofillProfile;
 extern const char kCreditCardSigninPromoImpressionLimitParamKey[];
@@ -125,6 +126,10 @@ bool IsAutofillOfferLocalSaveIfServerCardManuallyEnteredExperimentEnabled();
 // in the offer to save bubble if it was not detected during the checkout flow.
 bool IsAutofillUpstreamRequestCvcIfMissingExperimentEnabled();
 
+// Returns whether the experiment is enabled where Chrome Upstream displays a
+// new save card bubble/infobar design.
+bool IsAutofillUpstreamShowNewUiExperimentEnabled();
+
 // Returns the maximum time that could have elapsed since an address profile's
 // most recent use for the adress profile to be included in the candidate set
 // for card upload. Returns 0 if the experiment is not enabled.