Separate handler initialization from page initialization

chrome/browser/ui/webui/options2/core_options_handler2.h

 // 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.
 
 #ifndef CHROME_BROWSER_UI_WEBUI_OPTIONS2_CORE_OPTIONS_HANDLER2_H_
 #define CHROME_BROWSER_UI_WEBUI_OPTIONS2_CORE_OPTIONS_HANDLER2_H_
 #pragma once
 
 #include <map>
 #include <string>
 
 #include "base/values.h"
 #include "chrome/browser/plugin_data_remover_helper.h"
 #include "chrome/browser/prefs/pref_change_registrar.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/ui/webui/options2/options_ui2.h"
 
 namespace options2 {
 
 // Core options UI handler.
 // Handles resource and JS calls common to all options sub-pages.
 class CoreOptionsHandler : public OptionsPageUIHandler {
  public:
   CoreOptionsHandler();
   virtual ~CoreOptionsHandler();
 
   // OptionsPageUIHandler implementation.
   virtual void GetLocalizedValues(DictionaryValue* localized_strings) OVERRIDE;
-  virtual void InitializeHandler() OVERRIDE;
   virtual void InitializePage() OVERRIDE;
   virtual void Uninitialize() OVERRIDE;
 
   // content::NotificationObserver implementation.
   virtual void Observe(int type,
                        const content::NotificationSource& source,
                        const content::NotificationDetails& details) OVERRIDE;
 
   // WebUIMessageHandler implementation.
   virtual void RegisterMessages() OVERRIDE;
@@ skipping 51 matching lines @@
   // Value::Type, since a TYPE_STRING can require custom processing.
   enum PrefType {
     TYPE_BOOLEAN = 0,
     TYPE_INTEGER,
     TYPE_DOUBLE,
     TYPE_STRING,
     TYPE_URL,
     TYPE_LIST,
   };
 
-  // Callback for the "coreOptionsInitialize" message.  This message will
-  // trigger the Initialize() method of all other handlers so that final
-  // setup can be performed before the page is shown.
-  void HandleInitialize(const ListValue* args);
+  // Callback for the "coreOptionsInitializePages" message. This calls the
+  // InitializePage() method of all other handlers, to pass data back to the
+  // JavaScript on the page so it can populate the UI.
+  void HandleInitializePages(const ListValue* args);
 
   // Callback for the "fetchPrefs" message. This message accepts the list of
   // preference names passed as the |args| parameter (ListValue). It passes
   // results dictionary of preference values by calling prefsFetched() JS method
   // on the page.
   void HandleFetchPrefs(const ListValue* args);
 
   // Callback for the "observePrefs" message. This message initiates
   // notification observing for given array of preference names.
   void HandleObservePrefs(const ListValue* args);
@@ skipping 31 matching lines @@
   // Used for asynchronously updating the preference stating whether clearing
   // LSO data is supported.
   PluginDataRemoverHelper clear_plugin_lso_data_enabled_;
 
   DISALLOW_COPY_AND_ASSIGN(CoreOptionsHandler);
 };
 
 }  // namespace options2
 
 #endif  // CHROME_BROWSER_UI_WEBUI_OPTIONS2_CORE_OPTIONS_HANDLER2_H_