Call Release instead of deleteing the object directly.

chrome/browser/dom_ui/new_tab_ui.cc

 // Copyright (c) 2006-2009 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 "build/build_config.h"
 
 #include "chrome/browser/dom_ui/new_tab_ui.h"
 
 #include <set>
 
@@ skipping 560 matching lines @@
     AddMessageHandler((new NewTabPageSetHomepageHandler())->Attach(this));
 
     InitializeCSSCaches();
     NewTabHTMLSource* html_source = new NewTabHTMLSource(GetProfile());
     bool posted = ChromeThread::PostTask(
         ChromeThread::IO, FROM_HERE,
         NewRunnableMethod(
             &chrome_url_data_manager,
             &ChromeURLDataManager::AddDataSource,
             html_source));
-    if (!posted)
-      delete html_source;  // Keep Valgrind happy in tests.
+    if (!posted) {
+      html_source->AddRef();
+      html_source->Release();  // Keep Valgrind happy in tests.
+    }
   }
 
   // Listen for theme installation.
   registrar_.Add(this, NotificationType::BROWSER_THEME_CHANGED,
                  NotificationService::AllSources());
   // Listen for bookmark bar visibility changes.
   registrar_.Add(this, NotificationType::BOOKMARK_BAR_VISIBILITY_PREF_CHANGED,
                  NotificationService::AllSources());
 }
 
@@ skipping 23 matching lines @@
 }
 
 void NewTabUI::InitializeCSSCaches() {
   DOMUIThemeSource* theme = new DOMUIThemeSource(GetProfile());
   bool posted = ChromeThread::PostTask(
       ChromeThread::IO, FROM_HERE,
       NewRunnableMethod(
           &chrome_url_data_manager,
           &ChromeURLDataManager::AddDataSource,
           theme));
-  if (!posted)
-    delete theme;  // Keep Valgrind happy in tests.
+  if (!posted) {
+    theme->AddRef();
+    theme->Release();  // Keep Valgrind happy in tests.
+  }
 }
 
 // static
 void NewTabUI::RegisterUserPrefs(PrefService* prefs) {
   MostVisitedHandler::RegisterUserPrefs(prefs);
   ShownSectionsHandler::RegisterUserPrefs(prefs);
   if (NewTabUI::WebResourcesEnabled())
     TipsHandler::RegisterUserPrefs(prefs);
 }
 
@@ skipping 272 matching lines @@
   std::string json_html;
   jstemplate_builder::AppendJsonHtml(&localized_strings, &json_html);
 
   static const std::string template_data_placeholder =
       "<!-- template data placeholder -->";
   ReplaceFirstSubstringAfterOffset(&full_html_, 0, template_data_placeholder,
       json_html);
 
   jstemplate_builder::AppendI18nTemplateProcessHtml(&full_html_);
 }