Add support for transparent background API

chrome/test/data/extensions/platform_apps/windows_api_alpha_enabled/no_permissions/background.js

Index: chrome/test/data/extensions/platform_apps/windows_api_alpha_enabled/no_permissions/background.js
diff --git a/chrome/test/data/extensions/platform_apps/windows_api_alpha_enabled/no_permissions/background.js b/chrome/test/data/extensions/platform_apps/windows_api_alpha_enabled/no_permissions/background.js
new file mode 100644
index 0000000000000000000000000000000000000000..ada4b303d6ae5a3089673314ecd9a4fbea57c60e
--- /dev/null
+++ b/chrome/test/data/extensions/platform_apps/windows_api_alpha_enabled/no_permissions/background.js
@@ -0,0 +1,36 @@
+// Copyright 2014 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+var error = 'The alphaEnabled option requires app.window.alpha permission.';
+
+function testAlphaEnabled(testId, setValue, expectedValue) {
+  var createOptions = { id: testId };
+  createOptions.alphaEnabled = setValue;
+
+  chrome.app.window.create('index.html',
+                           createOptions,
+                           chrome.test.callbackFail(error));
+}
+
+// All these tests are run without app.window.alpha permission
+// set. Test results are the same regardless of whether or not Aura is
+// supported.
+
+chrome.app.runtime.onLaunched.addListener(function() {
+  chrome.test.runTests([
+
+    // Window is created with alphaEnabled set to true.
+    function testAlphaEnabledNoPermInitTrue() {
+      testAlphaEnabled('testAlphaEnabledNoPermInitTrue',
+                       true, true, false);
+    },
+
+    // Window is created with alphaEnabled set to false.
+    function testAlphaEnabledNoPermInitFalse() {
+      testAlphaEnabled('testAlphaEnabledNoPermInitFalse',
+                       true, false, false);
+    }
+
+  ]);
+});