[MD Bookmarks] Add UI for Material Bookmarks.

chrome/browser/resources/md_bookmarks/list.js

Index: chrome/browser/resources/md_bookmarks/list.js
diff --git a/chrome/browser/resources/md_bookmarks/list.js b/chrome/browser/resources/md_bookmarks/list.js
new file mode 100644
index 0000000000000000000000000000000000000000..4b4bd5765cf4026846b1d9540769ac6d6d35e1cf
--- /dev/null
+++ b/chrome/browser/resources/md_bookmarks/list.js
@@ -0,0 +1,48 @@
+// Copyright 2016 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.
+
+Polymer({
+  is: 'bookmarks-list',

[tsergeant, 2017/01/04 03:44:12]

Blank line after this.

[jiaxi, 2017/01/04 04:12:33]

Done.

+  properties: {
+    /** @type {BookmarkTreeNode} */
+    selectedNode: Object,
+  },
+
+  listeners: {
+    'toggle-menu': 'onToggleMenu_'
+  },
+
+  /**
+   * @param {Event} e
+   * @private
+   */
+  onToggleMenu_: function(e) {
+    var menu = /** @type {!CrActionMenuElement} */ (
+        this.$.dropdown);
+    menu.showAt(/** @type {!Element} */ (e.detail.target));
+  },
+
+  // TODO(jiaxi): change these dummy click event handlers later.
+  /** @private */
+  onEditTap_: function() {
+    this.closeDropdownMenu_();
+  },
+
+  /** @private */
+  onCopyURLTap_: function() {
+    this.closeDropdownMenu_();
+  },
+
+  /** @private */
+  onDeleteTap_: function() {
+    this.closeDropdownMenu_();
+  },
+
+  /** @private */
+  closeDropdownMenu_: function() {
+    var menu = /** @type {!CrActionMenuElement} */ (
+        this.$.dropdown);
+    menu.close();
+  }
+});