Make WebUI objects not derive from WebUI. WebUI objects own the controller. This is the ownership...

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

 // Copyright (c) 2012 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/pack_extension_handler.h"
 
 #include "chrome/browser/extensions/extension_creator.h"
 #include "base/bind.h"
 #include "base/utf_string_conversions.h"
+#include "content/browser/webui/web_ui.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 
 PackExtensionHandler::PackExtensionHandler() {
 }
 
 PackExtensionHandler::~PackExtensionHandler() {
   if (pack_job_.get())
     pack_job_->ClearClient();
 }
@@ skipping 93 matching lines @@
 
   pack_job_ = new PackExtensionJob(this, root_directory, key_file, run_flags);
   pack_job_->Start();
 }
 
 void PackExtensionHandler::ShowAlert(const std::string& message) {
   ListValue arguments;
   arguments.Append(Value::CreateStringValue(message));
   web_ui()->CallJavascriptFunction("alert", arguments);
 }