NTP4/apps page: fix page stickiness

chrome/browser/ui/webui/ntp/app_launcher_handler.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_NTP_APP_LAUNCHER_HANDLER_H_
 #define CHROME_BROWSER_UI_WEBUI_NTP_APP_LAUNCHER_HANDLER_H_
 
 #include <set>
 #include <string>
 
@@ skipping 15 matching lines @@
 
 class ExtensionEnableFlow;
 class ExtensionService;
 class PrefChangeRegistrar;
 class Profile;
 
 namespace favicon_base {
 struct FaviconImageResult;
 }
 
+namespace user_prefs {
+class PrefRegistrySyncable;
+}
+
 // The handler for Javascript messages related to the "apps" view.
 class AppLauncherHandler
     : public content::WebUIMessageHandler,
       public extensions::ExtensionUninstallDialog::Delegate,
       public ExtensionEnableFlowDelegate,
       public content::NotificationObserver,
       public extensions::ExtensionRegistryObserver {
  public:
   explicit AppLauncherHandler(ExtensionService* extension_service);
   ~AppLauncherHandler() override;
 
   // Populate a dictionary with the information from an extension.
   static void CreateAppInfo(
       const extensions::Extension* extension,
       ExtensionService* service,
       base::DictionaryValue* value);
 
+  // Registers values (strings etc.) for the page.
+  static void GetLocalizedValues(Profile* profile,
+      base::DictionaryValue* values);
+
+  // Register per-profile preferences.
+  static void RegisterProfilePrefs(user_prefs::PrefRegistrySyncable* registry);
+
   // WebUIMessageHandler:
   void RegisterMessages() override;
 
   // content::NotificationObserver:
   void Observe(int type,
                const content::NotificationSource& source,
                const content::NotificationDetails& details) override;
 
   // extensions::ExtensionRegistryObserver:
   void OnExtensionLoaded(content::BrowserContext* browser_context,
@@ skipping 50 matching lines @@
   void HandleSetPageIndex(const base::ListValue* args);
 
   // Handles "saveAppPageName" message with |args| containing [name,
   // page_index].
   void HandleSaveAppPageName(const base::ListValue* args);
 
   // Handles "generateAppForLink" message with |args| containing [url, title,
   // page_index].
   void HandleGenerateAppForLink(const base::ListValue* args);
 
-  // Other registered message callbacks with unused |args|.
-  void StopShowingAppLauncherPromo(const base::ListValue* args);
-  void OnLearnMore(const base::ListValue* args);
+  // Handles "stopShowingAppLauncherPromo" message with unused |args|.
+  void HandleStopShowingAppLauncherPromo(const base::ListValue* args);
+
+  // Handles "learnMore" message with unused |args|.
+  void HandleOnLearnMore(const base::ListValue* args);
+
+  // Handles "pageSelected" message with |args| containing [page_index].
+  void HandlePageSelected(const base::ListValue* args);
 
  private:
   struct AppInstallInfo {
     AppInstallInfo();
     ~AppInstallInfo();
 
     base::string16 title;
     GURL app_url;
     syncer::StringOrdinal page_ordinal;
   };
@@ skipping 76 matching lines @@
   // when the app is added to the page (via getAppsCallback or appAdded).
   std::string highlight_app_id_;
 
   // Used for favicon loading tasks.
   base::CancelableTaskTracker cancelable_task_tracker_;
 
   DISALLOW_COPY_AND_ASSIGN(AppLauncherHandler);
 };
 
 #endif  // CHROME_BROWSER_UI_WEBUI_NTP_APP_LAUNCHER_HANDLER_H_