[MD Bookmarks] Double Click

chrome/browser/resources/md_bookmarks/store.js

Index: chrome/browser/resources/md_bookmarks/store.js
diff --git a/chrome/browser/resources/md_bookmarks/store.js b/chrome/browser/resources/md_bookmarks/store.js
index 8f0ef849e334c115d6178bff4e4628950a34fcd8..764d18b80444ac0824183c57182fd5a62acc7e2f 100644
--- a/chrome/browser/resources/md_bookmarks/store.js
+++ b/chrome/browser/resources/md_bookmarks/store.js
@@ -357,9 +357,24 @@ var BookmarksStore = Polymer({
     if (!this.idToNodeMap_[id] || this.idToNodeMap_[id].url)
       id = this.rootNode.children[0].id;
 
-    var newFolder = this.idToNodeMap_[id];
-    this.set(newFolder.path + '.isSelectedFolder', true);
+    var folder = this.idToNodeMap_[id];
+    this.set(folder.path + '.isSelectedFolder', true);
     this.selectedId = id;
+
+    if (folder.id == this.rootNode.id)
+      return;
+
+    var parent = this.idToNodeMap_[folder.parentId];
+    while (parent) {
+      if (!parent.isOpen) {
+        this.fire('folder-open-changed', {
+          id: parent.id,
+          open: true,
+        });
+      }
+
+      parent = this.idToNodeMap_[parent.parentId];
+    }
   },
 
   /**