[WIP] MD Bookmarks Drag and Drop.

chrome/browser/resources/md_bookmarks/folder_node.html

Index: chrome/browser/resources/md_bookmarks/folder_node.html
diff --git a/chrome/browser/resources/md_bookmarks/folder_node.html b/chrome/browser/resources/md_bookmarks/folder_node.html
index 997da21c99d0f0b04cc56d7ab7467f072401e0c7..539150485b242d1e92b1b81700ff60cfa1443600 100644
--- a/chrome/browser/resources/md_bookmarks/folder_node.html
+++ b/chrome/browser/resources/md_bookmarks/folder_node.html
@@ -14,6 +14,7 @@
       :host {
         --padding-start-per-depth: 36px;
         display: block;
+        position: relative;
       }
 
       .v-centered {
@@ -38,6 +39,10 @@
         height: 40px;
       }
 
+      :host(.drag-on) #container {
+        background-color: rgba(66, 133, 244, 0.16);
+      }
+
       #folder-label {
         -webkit-padding-end: 8px;
         color: var(--secondary-text-color);
@@ -79,7 +84,8 @@
       }
     </style>
 
-    <div id="container" class="v-centered" on-tap="selectFolder_">
+    <div id="container" class="v-centered" on-tap="selectFolder_"
+        draggable="[[!isRootFolder_(depth)]]">
       <template is="dom-if" if="[[hasChildFolder_(item_.children)]]">
         <paper-icon-button id="arrow" icon="cr:arrow-drop-down"
             is-open$="[[!isClosed_]]" on-tap="toggleFolder_">