MD Bookmarks: Enable the delete button in the toolbar overlay

chrome/test/data/webui/md_bookmarks/toolbar_test.js

Index: chrome/test/data/webui/md_bookmarks/toolbar_test.js
diff --git a/chrome/test/data/webui/md_bookmarks/toolbar_test.js b/chrome/test/data/webui/md_bookmarks/toolbar_test.js
index 1cd78ffb9c9a0bae3d3f9f503ffb0e212e8e7ca5..8e5d470d38f24d0d61ec43de90435a956eb2ea9e 100644
--- a/chrome/test/data/webui/md_bookmarks/toolbar_test.js
+++ b/chrome/test/data/webui/md_bookmarks/toolbar_test.js
@@ -5,6 +5,11 @@
 suite('<bookmarks-toolbar>', function() {
   var toolbar;
   var store;
+  var commandManager;
+
+  suiteSetup(function() {
+    chrome.bookmarkManagerPrivate.removeTrees = function() {};
+  });
 
   setup(function() {
     store = new bookmarks.TestStore({
@@ -21,6 +26,9 @@ suite('<bookmarks-toolbar>', function() {
 
     toolbar = document.createElement('bookmarks-toolbar');
     replaceBody(toolbar);
+
+    commandManager = new TestCommandManager();
+    document.body.appendChild(commandManager);
   });
 
   test('selecting multiple items shows toolbar overlay', function() {
@@ -34,4 +42,15 @@ suite('<bookmarks-toolbar>', function() {
     store.notifyObservers();
     assertTrue(toolbar.showSelectionOverlay);
   });
+
+  test('clicking overlay delete button triggers a delete command', function() {
+    store.data.selection.items = new Set(['2', '3']);
+    store.notifyObservers();
+
+    Polymer.dom.flush();
+    MockInteractions.tap(
+        toolbar.$$('cr-toolbar-selection-overlay').deleteButton);
+
+    commandManager.assertLastCommand(Command.DELETE, ['2', '3']);
+  });
 });