Do not check against child_count() > 0, instead check if node is not empty().

chrome/browser/ui/webui/options/intents_settings_handler.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/ui/webui/options/intents_settings_handler.h"
 
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/browsing_data_appcache_helper.h"
 #include "chrome/browser/browsing_data_database_helper.h"
@@ skipping 85 matching lines @@
   if (node->Type() == IntentsTreeNode::TYPE_ORIGIN) {
     RemoveOrigin(node);
   } else if (node->Type() == IntentsTreeNode::TYPE_SERVICE) {
     ServiceTreeNode* snode = static_cast<ServiceTreeNode*>(node);
     RemoveService(snode);
   }
 }
 
 void IntentsSettingsHandler::RemoveOrigin(IntentsTreeNode* node) {
   // TODO(gbillock): This is a known batch update. Worth optimizing?
-  while (node->child_count() > 0) {
+  while (!node->empty()) {
     IntentsTreeNode* cnode = node->GetChild(0);
     CHECK(cnode->Type() == IntentsTreeNode::TYPE_SERVICE);
     ServiceTreeNode* snode = static_cast<ServiceTreeNode*>(cnode);
     RemoveService(snode);
   }
   delete intents_tree_model_->Remove(node->parent(), node);
 }
 
 void IntentsSettingsHandler::RemoveService(ServiceTreeNode* snode) {
   WebIntentData provider;
@@ skipping 33 matching lines @@
                                         children);
 
   ListValue args;
   args.Append(parent == intents_tree_model_->GetRoot() ?
       Value::CreateNullValue() :
       Value::CreateStringValue(intents_tree_model_->GetTreeNodeId(parent)));
   args.Append(children);
 
   web_ui_->CallJavascriptFunction("IntentsView.loadChildren", args);
 }