For media element fetches, remove user:pass components always.

LayoutTests/http/tests/media/resources/video-check-userpass.php

Index: LayoutTests/http/tests/media/resources/video-check-userpass.php
diff --git a/LayoutTests/http/tests/media/resources/video-check-userpass.php b/LayoutTests/http/tests/media/resources/video-check-userpass.php
new file mode 100644
index 0000000000000000000000000000000000000000..f51df57e117192cd5c91b8f6478ae68f1ec34cd5
--- /dev/null
+++ b/LayoutTests/http/tests/media/resources/video-check-userpass.php
@@ -0,0 +1,17 @@
+<?php
+
+    $auth = $_SERVER["HTTP_AUTHORIZATION"];
+    $url = $_SERVER["REQUEST_URI"];
+
+    if (isset($auth) || stripos($url, "user:pass") !== false)
+       die;
+
+    $fileName = $_GET["name"];
+    $type = $_GET["type"];
+
+    $_GET = array();
+    $_GET['name'] = $fileName;
+    $_GET['type'] = $type;
+    @include("./serve-video.php");
+
+?>