[Autofill Auth] Only connecting to authenticator if not bound already.

Adding a check for whether or not the authenticator is bound before attempting
to connect to it. Otherwise this may cause crashes if IsUserVerifiable() is
called multiple times.

Bug: 949269
Change-Id: Ic67218581d8a72b96cbdf1cf24427651d598e13a
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1849128Reviewed-by: Jared Saul <jsaul@google.com>
Commit-Queue: Manas Verma <manasverma@google.com>
Cr-Commit-Position: refs/heads/master@{#704380}

components/autofill/core/browser/payments/credit_card_fido_authenticator.cc

@@ -127,8 +127,10 @@ void CreditCardFIDOAuthenticator::IsUserVerifiable(
     base::OnceCallback<void(bool)> callback) {
   if (base::FeatureList::IsEnabled(
           features::kAutofillCreditCardAuthentication)) {
-    autofill_driver_->ConnectToAuthenticator(
-        authenticator_.BindNewPipeAndPassReceiver());
+    if (!authenticator_.is_bound()) {
+      autofill_driver_->ConnectToAuthenticator(
+          authenticator_.BindNewPipeAndPassReceiver());
+    }
     authenticator_->IsUserVerifyingPlatformAuthenticatorAvailable(
         std::move(callback));
   } else {