fix(webapi): reconcile replayed FileList binding and regressions

Use the shared FileList interface identity in the replayed input setter.
Remove the duplicate XHR URL and credentials regression while retaining
one complete copy, and format the newly replayed WebRTC import.

Validation: cargo fmt --all; cargo clippy --workspace --all-targets
--all-features -- -D warnings; cargo nextest run --no-fail-fast
(17971 passed, 13 skipped).

moli-renderer-v8/src/context_bootstrap/webrtc/events.rs

@@ -1,5 +1,5 @@
-use crate::web_api_interfaces;
 use super::{ice_candidate::ice_candidate_receiver_branded, rtc_data_channel_receiver_branded};
+use crate::web_api_interfaces;
 use crate::{
     context_bootstrap::events::{initialize_event_object_with_type, parse_event_init},
     util::{

moli-renderer-v8/src/native_bridge/element/forms/input/files.rs

@@ -129,7 +129,7 @@ fn input_files_setter_on_object<'s>(
     };
     // Web IDL checks the interface identity, independent of the object's realm
     // or mutable prototype. This conversion also precedes input-type checks.
-    if !crate::context_bootstrap::is_file_list_object(scope, object) {
+    if !crate::web_api_interfaces::FileList::is_instance(scope, object) {
         throw_type_error(
             scope,
             "Failed to set the 'files' property on 'HTMLInputElement': The provided value is not of type 'FileList'.",

moli-renderer-v8/src/script_vm/tests/dom_xhr/xhr.rs

@@ -3435,60 +3435,6 @@ async fn streaming_xhr_materialization_failure_errors_body_source_before_close()
     );
 }
 
-#[tokio::test(flavor = "current_thread")]
-async fn window_xhr_open_freezes_base_url_and_applies_url_credentials() {
-    let server = StaticHttpServer::spawn(1).await;
-    let base_url = server.base_url();
-    let loader = static_http_loader(std::iter::empty::<String>());
-    let mut vm = new_page_task_executor_test_vm_with_loader(
-        base_url
-            .join("page.html")
-            .expect("page fixture URL")
-            .as_str(),
-        &loader,
-    );
-    let first_base = base_url.join("first/").expect("first base URL");
-    let second_base = base_url.join("second/").expect("second base URL");
-
-    vm.eval(&format!(
-        r#"
-(() => {{
-  globalThis.__xhrOpenUrlProbe = "pending";
-  const base = document.createElement("base");
-  base.href = {};
-  document.head.append(base);
-  const xhr = new XMLHttpRequest();
-  xhr.open("GET", "resource", true, "alice", "secret");
-  base.href = {};
-  xhr.onload = () => {{ globalThis.__xhrOpenUrlProbe = "done"; }};
-  xhr.onerror = () => {{ globalThis.__xhrOpenUrlProbe = "error"; }};
-  xhr.send();
-  return "started";
-}})()
-"#,
-        serde_json::to_string(first_base.as_str()).expect("serialize first base URL"),
-        serde_json::to_string(second_base.as_str()).expect("serialize second base URL"),
-    ))
-    .expect("XHR open URL probe should evaluate");
-
-    advance_page_task_executor_until_eval_equals(
-        &mut vm,
-        &loader,
-        "String(globalThis.__xhrOpenUrlProbe)",
-        "done",
-        "XHR open URL probe",
-    )
-    .await;
-
-    let requests = server.finish().await;
-    assert_eq!(requests.len(), 1);
-    assert_eq!(requests[0].target, "/first/resource");
-    assert_eq!(
-        requests[0].header_value("authorization"),
-        Some("Basic YWxpY2U6c2VjcmV0")
-    );
-}
-
 #[test]
 fn xhr_response_documents_keep_distinct_source_modification_times() {
     let environment = moli_v8_platform::ProcessEnvironmentOwner::default();