[GTK] add instant pref

chrome/browser/gtk/options/general_page_gtk.h

 // Copyright (c) 2010 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_GTK_OPTIONS_GENERAL_PAGE_GTK_H_
 #define CHROME_BROWSER_GTK_OPTIONS_GENERAL_PAGE_GTK_H_
 #pragma once
 
 #include <gtk/gtk.h>
 
@@ skipping 74 matching lines @@
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupRadioToggled);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupAddCustomPageClicked);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupRemoveCustomPageClicked);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnStartupUseCurrentPageClicked);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnNewTabIsHomePageToggled);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnHomepageUseUrlEntryChanged);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnShowHomeButtonToggled);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnDefaultSearchEngineChanged);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void,
                        OnDefaultSearchManageEnginesClicked);
+  CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnInstantToggled);
   CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnBrowserUseAsDefaultClicked);
+  CHROMEGTK_CALLBACK_1(GeneralPageGtk, void, OnInstantLabelSizeAllocate,
+                       GtkAllocation*);
+  CHROMEGTK_CALLBACK_0(GeneralPageGtk, void, OnSearchLearnMoreClicked);
 
   CHROMEG_CALLBACK_0(GeneralPageGtk, void, OnStartupPagesSelectionChanged,
                      GtkTreeSelection*);
 
   // Enables/Disables the controls associated with the custom start pages
   // option if that preference is not selected.
   void EnableCustomHomepagesControls(bool enable);
 
   // ShellIntegration::DefaultBrowserObserver implementation.
   virtual void SetDefaultBrowserUIState(
@@ skipping 24 matching lines @@
   GtkWidget* homepage_show_home_button_checkbox_;
   BooleanPrefMember new_tab_page_is_home_page_;
   StringPrefMember homepage_;
   BooleanPrefMember show_home_button_;
 
   // Widgets and data of the default search group
   GtkWidget* default_search_engine_combobox_;
   GtkListStore* default_search_engines_model_;
   GtkWidget* default_search_manage_engines_button_;
   TemplateURLModel* template_url_model_;
+  GtkWidget* instant_checkbox_;
+  // This widget acts as the indent for the instant warning label.
+  GtkWidget* instant_indent_;
+  BooleanPrefMember instant_;
 
   // Widgets of the default browser group
   GtkWidget* default_browser_status_label_;
   GtkWidget* default_browser_use_as_default_button_;
 
   // The parent GtkTable widget
   GtkWidget* page_;
 
   // Flag to ignore gtk callbacks while we are populating default search urls.
   bool default_search_initializing_;
@@ skipping 10 matching lines @@
 
   // Tracks managed preference warning banner state.
   ManagedPrefsBannerGtk managed_prefs_banner_;
 
   PrefChangeRegistrar registrar_;
 
   DISALLOW_COPY_AND_ASSIGN(GeneralPageGtk);
 };
 
 #endif  // CHROME_BROWSER_GTK_OPTIONS_GENERAL_PAGE_GTK_H_