Remove InstallTracker's extension load, unload observer

chrome/browser/ui/app_list/recommended_apps.cc

 // Copyright 2013 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 "chrome/browser/ui/app_list/recommended_apps.h"
 
 #include <algorithm>
 #include <vector>
 
 #include "base/bind.h"
 #include "chrome/browser/extensions/extension_ui_util.h"
-#include "chrome/browser/extensions/install_tracker.h"
-#include "chrome/browser/extensions/install_tracker_factory.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/app_list/recommended_apps_observer.h"
 #include "chrome/common/pref_names.h"
 #include "extensions/browser/extension_prefs.h"
 #include "extensions/browser/extension_registry.h"
 #include "extensions/browser/pref_names.h"
 #include "extensions/common/extension.h"
 #include "extensions/common/extension_set.h"
 
 namespace app_list {
 
 namespace {
 
 struct AppSortInfo {
   AppSortInfo() : app(NULL) {}
   AppSortInfo(const extensions::Extension* app,
               const base::Time& last_launch_time)
       : app(app), last_launch_time(last_launch_time) {}
 
   const extensions::Extension* app;
   base::Time last_launch_time;
 };
 
 bool AppLaunchedMoreRecent(const AppSortInfo& app1, const AppSortInfo& app2) {
   return app1.last_launch_time > app2.last_launch_time;
 }
 
 }  // namespace
 
-RecommendedApps::RecommendedApps(Profile* profile) : profile_(profile) {
-  extensions::InstallTrackerFactory::GetForProfile(profile_)->AddObserver(this);
-
+RecommendedApps::RecommendedApps(Profile* profile)
+    : profile_(profile), extension_registry_observer_(this) {
   extensions::ExtensionPrefs* prefs = extensions::ExtensionPrefs::Get(profile_);
   pref_change_registrar_.Init(prefs->pref_service());
   pref_change_registrar_.Add(extensions::pref_names::kExtensions,
                              base::Bind(&RecommendedApps::Update,
                                         base::Unretained(this)));
-
+  extension_registry_observer_.Add(extensions::ExtensionRegistry::Get(profile));
   Update();
 }
 
 RecommendedApps::~RecommendedApps() {
-  extensions::InstallTrackerFactory::GetForProfile(profile_)
-      ->RemoveObserver(this);
 }
 
 void RecommendedApps::AddObserver(RecommendedAppsObserver* observer) {
   observers_.AddObserver(observer);
 }
 
 void RecommendedApps::RemoveObserver(RecommendedAppsObserver* observer) {
   observers_.RemoveObserver(observer);
 }
 
@@ skipping 24 matching lines @@
 
   const bool changed = apps_.size() != new_recommends.size() ||
       !std::equal(apps_.begin(), apps_.end(), new_recommends.begin());
   if (changed) {
     apps_.swap(new_recommends);
     FOR_EACH_OBSERVER(
         RecommendedAppsObserver, observers_, OnRecommendedAppsChanged());
   }
 }
 
-void RecommendedApps::OnExtensionInstalled(
+void RecommendedApps::OnExtensionLoaded(
+    content::BrowserContext* browser_context,
     const extensions::Extension* extension) {
   Update();
 }
 
-void RecommendedApps::OnExtensionLoaded(
-    const extensions::Extension* extension) {
-  Update();
-}
-
-void RecommendedApps::OnExtensionUnloaded(
-    const extensions::Extension* extension) {
+void RecommendedApps::OnExtensionWillBeInstalled(
+    content::BrowserContext* browser_context,
+    const extensions::Extension* extension,
+    bool is_update,
+    bool from_ephemeral,
+    const std::string& old_name) {
   Update();
 }
 
 void RecommendedApps::OnExtensionUninstalled(
+    content::BrowserContext* browser_context,
     const extensions::Extension* extension) {
   Update();
 }
 
 }  // namespace app_list