Backed out changeset 00ab51ea2723 (bug 1620778) for test_autocomplete_mac_caret.xhtml failures CLOSED TREE

dom/html/TextControlState.cpp

@@ -950,15 +950,6 @@ TextInputListener::HandleEvent(Event* aEvent) {
     return NS_ERROR_UNEXPECTED;
   }
 
-  {
-    auto* input = HTMLInputElement::FromNode(mTxtCtrlElement);
-    if (input && input->StepsInputValue(*widgetKeyEvent)) {
-      // As an special case, don't handle key events that would step the value
-      // of our <input type=number>.
-      return NS_OK;
-    }
-  }
-
   KeyEventHandler* keyHandlers = ShortcutKeys::GetHandlers(
       mTxtCtrlElement->IsTextArea() ? HandlerType::eTextArea
                                     : HandlerType::eInput);