[MD Bookmarks] Add edit folder.

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
index 018b9c6d6114c0a618318ee5477fce73d9a6634b..5d16af2d6a3883135262bbe9193dcf7b73b23c02 100644
--- a/chrome/browser/resources/md_bookmarks/list.js
+++ b/chrome/browser/resources/md_bookmarks/list.js
@@ -30,12 +30,10 @@ Polymer({
     menu.showAt(/** @type {!Element} */ (e.detail.target));
   },
 
-  // TODO(jiaxi): change these dummy click event handlers later.
   /** @private */
   onEditTap_: function() {
     this.closeDropdownMenu_();
-    if (this.menuItem_.url)
-      this.$.editBookmark.showModal();
+    this.$.editBookmark.showModal();
   },
 
   /** @private */
@@ -63,10 +61,11 @@ Polymer({
 
   /** @private */
   onSaveEditTap_: function() {
-    chrome.bookmarks.update(this.menuItem_.id, {
-      'title': this.menuItem_.title,
-      'url': this.menuItem_.url,
-    });
+    var edit = {'title': this.menuItem_.title};
+    if (this.menuItem_.url)
+      edit['url'] = this.menuItem_.url;
+
+    chrome.bookmarks.update(this.menuItem_.id, edit);
     this.$.editBookmark.close();
   },
 
@@ -83,6 +82,18 @@ Polymer({
   },
 
   /** @private */
+  getEditActionLabel_: function() {
+    var label = this.menuItem_.url ? 'menuEdit' : 'menuRename';
+    return loadTimeData.getString(label);
+  },
+
+  /** @private */
+  getEditorTitle_: function() {
+    var title = this.menuItem_.url ? 'editBookmarkTitle' : 'renameFolderTitle';
+    return loadTimeData.getString(title);
+  },
+
+  /** @private */
   emptyListMessage_: function() {
     var emptyListMessage = this.searchTerm ? 'noSearchResults' : 'emptyList';
     return loadTimeData.getString(emptyListMessage);