Add test data for spaceport benchmark.

chrome/test/data/third_party/spaceport/js/util/timeout.js

Index: chrome/test/data/third_party/spaceport/js/util/timeout.js
diff --git a/chrome/test/data/third_party/spaceport/js/util/timeout.js b/chrome/test/data/third_party/spaceport/js/util/timeout.js
new file mode 100644
index 0000000000000000000000000000000000000000..9385a69c008f72d7713e06d1fe12000d323f3162
--- /dev/null
+++ b/chrome/test/data/third_party/spaceport/js/util/timeout.js
@@ -0,0 +1,14 @@
+define([ 'util/ensureCallback' ], function (ensureCallback) {
+    return function timeout(duration, fn, callback) {
+        callback = ensureCallback(callback);
+
+        var id = setTimeout(function () {
+            callback(new Error('Operation timed out'));
+        }, duration);
+
+        fn(function () {
+            clearTimeout(id);
+            callback.apply(this, arguments);
+        });
+    };
+});