Add GetMessageHandlers to HtmlDialogUIDelegate to allow...

chrome/browser/dom_ui/tips_handler.cc

 // Copyright (c) 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 "base/string_util.h"
 #include "base/values.h"
 #include "chrome/browser/dom_ui/tips_handler.h"
 #include "chrome/browser/profile.h"
 #include "chrome/browser/web_resource/web_resource_service.h"
 #include "chrome/common/web_resource/web_resource_unpacker.h"
 #include "chrome/common/pref_names.h"
 
 namespace {
 
   const int kNumTipsToShow = 2;
 
   // TODO(mrc): l10n
   // This title should only appear the very first time Chrome is run with
   // web resources enabled; otherwise the cache should be populated.
   static const wchar_t* kTipsTitleAtStartup =
       L"Tips and recommendations to help you discover interesting websites.";
 }
 
-TipsHandler::TipsHandler(DOMUI* dom_ui)
-    : DOMMessageHandler(dom_ui),
-      dom_ui_(dom_ui) {
-  dom_ui->RegisterMessageCallback("getTips",
-      NewCallback(this, &TipsHandler::HandleGetTips));
-
+DOMMessageHandler* TipsHandler::Attach(DOMUI* dom_ui) {
   tips_cache_ = dom_ui_->GetProfile()->GetPrefs()->
       GetDictionary(prefs::kNTPTipsCache);
+  return DOMMessageHandler::Attach(dom_ui);  
+}
+
+void TipsHandler::RegisterMessages() {
+  dom_ui_->RegisterMessageCallback("getTips",
+      NewCallback(this, &TipsHandler::HandleGetTips));
 }
 
 void TipsHandler::HandleGetTips(const Value* content) {
   // List containing the tips to be displayed.
   ListValue list_value;
 
   // Holds the web resource data found in the preferences cache.
   DictionaryValue* wr_dict;
 
   // These values hold the data for each web resource item.  As the web
@@ skipping 31 matching lines @@
 }
 
 // static
 void TipsHandler::RegisterUserPrefs(PrefService* prefs) {
   prefs->RegisterDictionaryPref(prefs::kNTPTipsCache);
   prefs->RegisterStringPref(prefs::kNTPTipsServer,
                             WebResourceService::kDefaultResourceServer);
 }