WebUI: Make settings-action-menu re-usable as cr-action-menu.

chrome/test/data/webui/cr_elements/cr_elements_browsertest.js

Index: chrome/test/data/webui/cr_elements/cr_elements_browsertest.js
diff --git a/chrome/test/data/webui/cr_elements/cr_elements_browsertest.js b/chrome/test/data/webui/cr_elements/cr_elements_browsertest.js
index a5985fd704b251d6a1f885e89617d0138d55a58b..2011f39942a30d23240403fe191fac0aa75eb093 100644
--- a/chrome/test/data/webui/cr_elements/cr_elements_browsertest.js
+++ b/chrome/test/data/webui/cr_elements/cr_elements_browsertest.js
@@ -134,3 +134,21 @@ CrElementsSharedMenuTest.prototype = {
 TEST_F('CrElementsSharedMenuTest', 'All', function() {
   mocha.run();
 });
+
+function CrElementsActionMenuTest() {}
+
+CrElementsActionMenuTest.prototype = {
+  __proto__: CrElementsBrowserTest.prototype,
+
+  /** @override */
+  browsePreload:
+      'chrome://resources/cr_elements/cr_action_menu/cr_action_menu.html',
+
+  extraLibraries: CrElementsBrowserTest.prototype.extraLibraries.concat([
+    'cr_action_menu_test.js',
+  ]),
+};
+
+TEST_F('CrElementsActionMenuTest', 'All', function() {
+  mocha.run();
+});