[Password Generation] Allow generation when saved credentials aren't valid

components/password_manager/core/browser/password_form_manager.cc

Index: components/password_manager/core/browser/password_form_manager.cc
diff --git a/components/password_manager/core/browser/password_form_manager.cc b/components/password_manager/core/browser/password_form_manager.cc
index 6033da65ac42cb799550c4cc21a7b2244838b3fb..7587ce8f7715dd04549e8c6c98fdf9c9c18cb370 100644
--- a/components/password_manager/core/browser/password_form_manager.cc
+++ b/components/password_manager/core/browser/password_form_manager.cc
@@ -441,7 +441,13 @@ void PasswordFormManager::OnRequestDone(
 
   client_->AutofillResultsComputed();
 
+  // TODO(gcasto): Change this to check that best_matches_ is empty. This should
+  // be equivalent for the moment, but it's less clear and may not be
+  // equivalent in the future.
   if (best_score <= 0) {
+    // If no saved forms can be used, then it isn't blacklisted and generation
+    // should be allowed.
+    driver_->AllowPasswordGenerationForForm(observed_form_);
     return;
   }