ARC: Add badge for Chrome hosted Apps if Arc++ is enabled.

chrome/browser/ui/app_list/extension_app_model_builder.h

 // Copyright 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_APP_LIST_EXTENSION_APP_MODEL_BUILDER_H_
 #define CHROME_BROWSER_UI_APP_LIST_EXTENSION_APP_MODEL_BUILDER_H_
 
 #include <stddef.h>
 
+#include <memory>
 #include <string>
 #include <vector>
 
 #include "base/macros.h"
 #include "chrome/browser/extensions/install_observer.h"
 #include "chrome/browser/ui/app_list/app_list_model_builder.h"
+#include "chrome/browser/ui/ash/launcher/launcher_app_updater.h"
 #include "components/prefs/pref_change_registrar.h"
-#include "extensions/browser/extension_registry_observer.h"
 #include "ui/base/models/list_model_observer.h"
 
 class AppListControllerDelegate;
+class LauncherExtensionAppUpdater;
 class ExtensionAppItem;
 
 namespace extensions {
 class Extension;
 class ExtensionRegistry;
 class ExtensionSet;
 class InstallTracker;
 }
 
 namespace gfx {
 class ImageSkia;
 }
 
 // This class populates and maintains the given |model| for extension items
 // with information from |profile|.
 class ExtensionAppModelBuilder : public AppListModelBuilder,
                                  public extensions::InstallObserver,
-                                 public extensions::ExtensionRegistryObserver {
+                                 public LauncherAppUpdater::Delegate {
  public:
   explicit ExtensionAppModelBuilder(AppListControllerDelegate* controller);
   ~ExtensionAppModelBuilder() override;
 
  private:
   typedef std::vector<ExtensionAppItem*> ExtensionAppList;
 
   // AppListModelBuilder
   void BuildModel() override;
 
   // extensions::InstallObserver.
   void OnBeginExtensionInstall(const ExtensionInstallParams& params) override;
   void OnDownloadProgress(const std::string& extension_id,
                           int percent_downloaded) override;
   void OnInstallFailure(const std::string& extension_id) override;
   void OnDisabledExtensionUpdated(
       const extensions::Extension* extension) override;
   void OnShutdown() override;
 
-  // extensions::ExtensionRegistryObserver.
-  void OnExtensionLoaded(content::BrowserContext* browser_context,
-                         const extensions::Extension* extension) override;
-  void OnExtensionUnloaded(
-      content::BrowserContext* browser_context,
-      const extensions::Extension* extension,
-      extensions::UnloadedExtensionInfo::Reason reason) override;
-  void OnExtensionUninstalled(content::BrowserContext* browser_context,
-                              const extensions::Extension* extension,
-                              extensions::UninstallReason reason) override;
-  void OnShutdown(extensions::ExtensionRegistry* registry) override;
+  // LauncherAppUpdater::Delegate:
+  void OnAppInstalled(content::BrowserContext* browser_context,
+                      const std::string& app_id) override;
+  void OnAppUpdated(content::BrowserContext* browser_context,
+                    const std::string& app_id) override;
+  void OnAppUninstalled(content::BrowserContext* browser_context,
+                        const std::string& app_id) override;
 
   // AppListItemListObserver.
   void OnListItemMoved(size_t from_index,
                        size_t to_index,
                        app_list::AppListItem* item) override;
 
   std::unique_ptr<ExtensionAppItem> CreateAppItem(
       const std::string& extension_id,
       const std::string& extension_name,
       const gfx::ImageSkia& installing_icon,
@@ skipping 19 matching lines @@
 
   // Registrar used to monitor the profile prefs.
   PrefChangeRegistrar profile_pref_change_registrar_;
 
   // Registrar used to monitor the extension prefs.
   PrefChangeRegistrar extension_pref_change_registrar_;
 
   // We listen to this to show app installing progress.
   extensions::InstallTracker* tracker_ = nullptr;
 
-  // Listen extension's load, unload, uninstalled.
-  extensions::ExtensionRegistry* extension_registry_ = nullptr;
+  // Dispatches extension lifecycle events.
+  std::unique_ptr<LauncherExtensionAppUpdater> app_updater_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionAppModelBuilder);
 };
 
 #endif  // CHROME_BROWSER_UI_APP_LIST_EXTENSION_APP_MODEL_BUILDER_H_