Prompt for unmasking Wallet credit card on Android

components/autofill/core/common/autofill_switches.cc

Index: components/autofill/core/common/autofill_switches.cc
diff --git a/components/autofill/core/common/autofill_switches.cc b/components/autofill/core/common/autofill_switches.cc
index bf16c329e1bc8fcaa40f1043267df3089de5f156..c112b2189ddd779bbf78667d314115112819bc5c 100644
--- a/components/autofill/core/common/autofill_switches.cc
+++ b/components/autofill/core/common/autofill_switches.cc
@@ -29,6 +29,9 @@ const char kEnablePasswordGeneration[]      = "enable-password-generation";
 // Enables/disables suggestions without typing anything (on first click).
 const char kEnableSingleClickAutofill[]     = "enable-single-click-autofill";
 
+// Enables the feature that imports Wallet cards for Chrome Autofill.
+const char kEnableWalletCardImport[]        = "enable-wallet-card-import";
+
 // Ignores autocomplete="off" for Autofill data (profiles + credit cards).
 const char kIgnoreAutocompleteOffForAutofill[] =
     "ignore-autocomplete-off-autofill";