Refactoring CookiesTreeModel to support multiple data sources.

chrome/browser/resources/options2/cookies_list.js

Index: chrome/browser/resources/options2/cookies_list.js
diff --git a/chrome/browser/resources/options2/cookies_list.js b/chrome/browser/resources/options2/cookies_list.js
index 8a4ae577c02f4d747b0f37eddc89e8d827ab04ff..51e47e3cc29b7e36488f5ef92e96bbd49e2eef08 100644
--- a/chrome/browser/resources/options2/cookies_list.js
+++ b/chrome/browser/resources/options2/cookies_list.js
@@ -605,6 +605,9 @@ cr.define('options', function() {
       var parent = this.parent;
       if (parent && parent instanceof CookieTreeNode)
         return parent.pathId + ',' + this.data.id;
+      if ($('cookies-list').rootId) {
+        return $('cookies-list').rootId + ',' + this.data.id;
+      }
       return this.data.id;
     },
   };
@@ -826,8 +829,13 @@ cr.define('options', function() {
      */
     removeByParentId: function(parentId, start, count) {
       var parent = parentId ? parentLookup[parentId] : this;
-      if (!parent)
-        return;
+      if (!parent) {
+        if (parentId) {
+          parent = this;
+        } else {
+          return;
+        }
+      }
 
       parent.startBatchUpdates();
       while (count-- > 0)
@@ -847,8 +855,13 @@ cr.define('options', function() {
       if (parentId)
         delete lookupRequests[parentId];
       var parent = parentId ? parentLookup[parentId] : this;
-      if (!parent)
-        return;
+      if (!parent) {
+        if (parentId) {
+          parent = this;
+        } else {
+          return;
+        }
+      }
 
       parent.startBatchUpdates();
       parent.clear();