Import Cobalt 19.master.0.203780

Includes the following patches:
  https://cobalt-review.googlesource.com/c/cobalt/+/5210
    by errong.leng@samsung.com
  https://cobalt-review.googlesource.com/c/cobalt/+/5270
    by linus.wang@samsung.com
diff --git a/src/third_party/web_platform_tests/XMLHttpRequest/xmlhttprequest-timeout-worker-overridesexpires.html b/src/third_party/web_platform_tests/XMLHttpRequest/xmlhttprequest-timeout-worker-overridesexpires.html
new file mode 100644
index 0000000..c1e601d
--- /dev/null
+++ b/src/third_party/web_platform_tests/XMLHttpRequest/xmlhttprequest-timeout-worker-overridesexpires.html
@@ -0,0 +1,26 @@
+ <!DOCTYPE html>
+<html>
+<head>
+    <meta charset="utf-8" />
+    <title>XHR2 Timeout Property Tests in Worker</title>
+    <link rel="help" href="https://xhr.spec.whatwg.org/#the-timeout-attribute" data-tested-assertations="following::ol[1]/li[2]" />
+    <link rel="help" href="https://xhr.spec.whatwg.org/#handler-xhr-ontimeout" data-tested-assertations="../.."/>
+    <link rel="help" href="https://xhr.spec.whatwg.org/#timeout-error" data-tested-assertations=".."/>
+    <link rel="help" href="https://xhr.spec.whatwg.org/#request-error" data-tested-assertations="following::ol[1]/li[9]"/>
+    <link rel="help" href="https://xhr.spec.whatwg.org/#infrastructure-for-the-send()-method" data-tested-assertations="following-sibling::dl//code[contains(@title,'dom-XMLHttpRequest-timeout')]/.. following-sibling::dl//code[contains(@title,'dom-XMLHttpRequest-timeout')]/../following-sibling::dd following::dt[1] following::dd[1]" />
+    <link rel="stylesheet" href="/resources/testharness.css" />
+    <meta name=timeout content=long>
+    <script src="/resources/testharness.js"></script>
+    <script src="/resources/testharnessreport.js"></script>
+    <script src="resources/xmlhttprequest-timeout-runner.js"></script>
+</head>
+<body>
+    <h1>Description</h1>
+    <p>This test validates that the XHR2 timeout property behaves as expected in in a worker context.</p>
+    <div id="log"></div>
+    <script type="text/javascript">
+        var worker = new Worker("resources/xmlhttprequest-timeout-overridesexpires.js");
+        worker.addEventListener("message", testResultCallbackHandler);
+    </script>
+</body>
+</html>