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

chrome/browser/ui/webui/chromeos/sim_unlock_ui.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/chromeos/sim_unlock_ui.h"
 
 #include <string>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/logging.h"
 #include "base/memory/weak_ptr.h"
 #include "base/message_loop.h"
 #include "base/string_piece.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/cros/cros_library.h"
 #include "chrome/browser/chromeos/cros/network_library.h"
 #include "chrome/browser/chromeos/sim_dialog_delegate.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/webui/chrome_url_data_manager.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/jstemplate_builder.h"
 #include "chrome/common/url_constants.h"
+#include "content/browser/webui/web_ui.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 #include "content/public/browser/web_ui_message_handler.h"
 #include "grit/browser_resources.h"
 #include "grit/generated_resources.h"
 #include "ui/base/l10n/l10n_util.h"
 #include "ui/base/resource/resource_bundle.h"
 
 using content::BrowserThread;
@@ skipping 621 matching lines @@
   sim_dict.SetInteger(kState, state_);
   if (!error_msg.empty())
     sim_dict.SetString(kError, error_msg);
   else
     sim_dict.SetString(kError, kErrorOk);
   web_ui()->CallJavascriptFunction(kJsApiSimStatusChanged, sim_dict);
 }
 
 // SimUnlockUI -----------------------------------------------------------------
 
-SimUnlockUI::SimUnlockUI(WebContents* contents) : WebUI(contents, this) {
+SimUnlockUI::SimUnlockUI(WebUI* web_ui) : WebUIController(web_ui) {
   SimUnlockHandler* handler = new SimUnlockHandler();
-  AddMessageHandler(handler);
+  web_ui->AddMessageHandler(handler);
   SimUnlockUIHTMLSource* html_source = new SimUnlockUIHTMLSource();
 
   // Set up the chrome://sim-unlock/ source.
-  Profile* profile = Profile::FromBrowserContext(contents->GetBrowserContext());
+  Profile* profile = Profile::FromBrowserContext(
+      web_ui->web_contents()->GetBrowserContext());
   profile->GetChromeURLDataManager()->AddDataSource(html_source);
 }
 
 }  // namespace chromeos