Stub implementation of Permissions API module.

LayoutTests/http/tests/permissions/resources/helpers.js

Index: LayoutTests/http/tests/permissions/resources/helpers.js
diff --git a/LayoutTests/http/tests/permissions/resources/helpers.js b/LayoutTests/http/tests/permissions/resources/helpers.js
new file mode 100644
index 0000000000000000000000000000000000000000..59c5a99189cfec0f7a6168d885fe6ec1b69d06eb
--- /dev/null
+++ b/LayoutTests/http/tests/permissions/resources/helpers.js
@@ -0,0 +1,42 @@
+// This file is using testharness.js coding style.
+
+function get_script_href()
+{
+    var filename = window.location.href.substr(window.location.href.lastIndexOf('/') + 1);
+    return 'resources/' + filename.replace('.html', '.js');
+}
+
+function get_current_scope()
+{
+    if ('document' in self) {
+        return 'Window';
+    }
+    if ('DedicatedWorkerGlobalScope' in self &&
+        self instanceof DedicatedWorkerGlobalScope) {
+        return 'DedicatedWorker';
+    }
+    if ('SharedWorkerGlobalScope' in self &&
+        self instanceof SharedWorkerGlobalScope) {
+        return 'SharedWorker';
+    }
+    if ('ServiceWorkerGlobalScope' in self &&
+        self instanceof ServiceWorkerGlobalScope) {
+        return 'ServiceWorker';
+    }
+
+    throw new Error('unknown scope');
+}
+
+function run_test() {
+    var script_href = get_script_href();
+
+    // Run the tests on the Window scope.
+    var script_element = document.createElement('script');
+    script_element.src = script_href;
+    document.body.appendChild(script_element);
+
+    // Run the tests on {Dedicated,Shared,Service}Worker.
+    fetch_tests_from_worker(new Worker(script_href));
+    fetch_tests_from_worker(new SharedWorker(script_href));
+    window.service_worker_test(script_href);
+}