Add credit card scanner to payments UI.

chrome/browser/android/chrome_feature_list.cc

Index: chrome/browser/android/chrome_feature_list.cc
diff --git a/chrome/browser/android/chrome_feature_list.cc b/chrome/browser/android/chrome_feature_list.cc
index 10554e05e299bbc8885eeb5067e3ae6f7ddab12e..bf4dc16adc095011f39078d5847b7263c0f0ad4d 100644
--- a/chrome/browser/android/chrome_feature_list.cc
+++ b/chrome/browser/android/chrome_feature_list.cc
@@ -48,6 +48,7 @@ const base::Feature* kFeaturesExposedToJava[] = {
     &kPhysicalWebFeature,
     &kPhysicalWebIgnoreOtherClientsFeature,
     &kReadItLaterInMenu,
+    &kScanCardsInWebPayments,
     &kSpecialLocaleFeature,
     &kSpecialLocaleWrapper,
     &kSystemDownloadManager,
@@ -91,6 +92,9 @@ const base::Feature kPhysicalWebIgnoreOtherClientsFeature{
 const base::Feature kReadItLaterInMenu{"ReadItLaterInMenu",
                                        base::FEATURE_DISABLED_BY_DEFAULT};
 
+const base::Feature kScanCardsInWebPayments{"ScanCardsInWebPayments",
+                                            base::FEATURE_DISABLED_BY_DEFAULT};
+
 const base::Feature kSpecialLocaleFeature{"SpecialLocale",
                                           base::FEATURE_DISABLED_BY_DEFAULT};