MD Bookmarks: Lazily render dropdown menus

chrome/browser/resources/md_bookmarks/command_manager.html

Index: chrome/browser/resources/md_bookmarks/command_manager.html
diff --git a/chrome/browser/resources/md_bookmarks/command_manager.html b/chrome/browser/resources/md_bookmarks/command_manager.html
index 1a875725109eafd2003957919496f5f57a04191d..2cde12573620b9a073f4c9bed71e2311f4423a5a 100644
--- a/chrome/browser/resources/md_bookmarks/command_manager.html
+++ b/chrome/browser/resources/md_bookmarks/command_manager.html
@@ -11,18 +11,20 @@
 <dom-module id="bookmarks-command-manager">
   <template>
     <style include="shared-style"></style>
-    <dialog is="cr-action-menu" id="dropdown" on-mousedown="onMenuMousedown_">
-      <template is="dom-repeat" items="[[menuCommands_]]" as="command">
-        <button class="dropdown-item"
-            command$="[[command]]"
-            hidden$="[[!isCommandVisible_(command, menuIds_)]]"
-            disabled$="[[!isCommandEnabled_(command, menuIds_)]]"
-            on-tap="onCommandClick_">
-          [[getCommandLabel_(command, menuIds_)]]
-        </button>
-        <hr hidden$="[[!showDividerAfter_(command, menuIds_)]]"></hr>
-      </template>
-    </dialog>
+    <template is="cr-lazy-render" id="dropdown">
+      <dialog is="cr-action-menu" on-mousedown="onMenuMousedown_">
+        <template is="dom-repeat" items="[[menuCommands_]]" as="command">
+          <button class="dropdown-item"
+              command$="[[command]]"
+              hidden$="[[!isCommandVisible_(command, menuIds_)]]"
+              disabled$="[[!isCommandEnabled_(command, menuIds_)]]"
+              on-tap="onCommandClick_">
+            [[getCommandLabel_(command, menuIds_)]]
+          </button>
+          <hr hidden$="[[!showDividerAfter_(command, menuIds_)]]"></hr>
+        </template>
+      </dialog>
+    </template>
     <template is="cr-lazy-render" id="editDialog">
       <bookmarks-edit-dialog></bookmarks-edit-dialog>
     </template>