Implement blank file tests + fix shim

test/spec/shim/cast/Timeout.spec.js

@@ -0,0 +1,13 @@
+"use strict";
+
+describe("chrome.cast.Timeout", () => {
+    it("should have all properties", async () => {
+        const timeout = new chrome.cast.Timeout();
+
+        expect(timeout.leaveSession).toBe(3000);
+        expect(timeout.requestSession).toBe(60000);
+        expect(timeout.sendCustomMessage).toBe(3000);
+        expect(timeout.setReceiverVolume).toBe(3000);
+        expect(timeout.stopSession).toBe(3000);
+    });
+});