Skeleton for showing "Show all saved passwords row" for Linux/CrOs/Windows platforms

components/autofill/core/browser/autofill_external_delegate.cc

Index: components/autofill/core/browser/autofill_external_delegate.cc
diff --git a/components/autofill/core/browser/autofill_external_delegate.cc b/components/autofill/core/browser/autofill_external_delegate.cc
index 27e046d10b6aeebc5ee1cfa138dcd5180538ca2a..329712ea42595672bed0d3e4f24892ff70e7cf26 100644
--- a/components/autofill/core/browser/autofill_external_delegate.cc
+++ b/components/autofill/core/browser/autofill_external_delegate.cc
@@ -227,11 +227,9 @@ void AutofillExternalDelegate::DidAcceptSuggestion(const base::string16& value,
   } else if (identifier == POPUP_ITEM_ID_SCAN_CREDIT_CARD) {
     manager_->client()->ScanCreditCard(base::Bind(
         &AutofillExternalDelegate::OnCreditCardScanned, GetWeakPtr()));
-  } else if (identifier == POPUP_ITEM_ID_CREDIT_CARD_SIGNIN_PROMO) {
-    manager_->client()->StartSigninFlow();
-  } else if (identifier == POPUP_ITEM_ID_HTTP_NOT_SECURE_WARNING_MESSAGE) {
-    AutofillMetrics::LogShowedHttpNotSecureExplanation();
-    manager_->client()->ShowHttpNotSecureExplanation();
+  } else if (identifier == POPUP_ITEM_ID_CREDIT_CARD_SIGNIN_PROMO ||
+             identifier == POPUP_ITEM_ID_HTTP_NOT_SECURE_WARNING_MESSAGE) {
+    manager_->client()->ExecuteCommand(identifier);
   } else {
     if (identifier > 0)  // Denotes an Autofill suggestion.
       AutofillMetrics::LogAutofillSuggestionAcceptedIndex(position);