Fix crash on NTP related to multi-profile extensions.

chrome/browser/ui/webui/ntp/app_launcher_handler.cc

Index: chrome/browser/ui/webui/ntp/app_launcher_handler.cc
diff --git a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
index 0355ee7e2ad6279726f037212487ea77ff267862..dfe024dac30dee7320c5d83a5e9e9645a53fc0b9 100644
--- a/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
+++ b/chrome/browser/ui/webui/ntp/app_launcher_handler.cc
@@ -441,7 +441,8 @@ void AppLauncherHandler::HandleGetApps(const ListValue* args) {
   // b) Conceptually, it doesn't really make sense to count a
   //    prefchange-triggered refresh as a promo 'view'.
   AppsPromo* apps_promo = extension_service_->apps_promo();
-  PrefService* prefs = Profile::FromWebUI(web_ui_)->GetPrefs();
+  Profile* profile = Profile::FromWebUI(web_ui_);
+  PrefService* prefs = profile->GetPrefs();
   bool apps_promo_just_expired = false;
   if (apps_promo->ShouldShowPromo(extension_service_->GetAppIds(),
                                   &apps_promo_just_expired)) {
@@ -470,17 +471,17 @@ void AppLauncherHandler::HandleGetApps(const ListValue* args) {
   // the apps as they change.
   if (registrar_.IsEmpty()) {
     registrar_.Add(this, chrome::NOTIFICATION_APP_NOTIFICATION_STATE_CHANGED,

[Yoyo Zhou, 2011/08/29 22:40:46]

This looks like it could possibly be sent from an incognito profile, in which
case we still need to listen to AllSources and filter by IsSameProfile.

[jstritar, 2011/08/30 15:06:31]

Done.

-        NotificationService::AllSources());
+        Source<Profile>(profile));
     registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LOADED,
-        NotificationService::AllSources());
+        Source<Profile>(profile));
     registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_UNLOADED,
-        NotificationService::AllSources());
+        Source<Profile>(profile));
     registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_LAUNCHER_REORDERED,
-        NotificationService::AllSources());
+        Source<ExtensionPrefs>(extension_service_->extension_prefs()));
     registrar_.Add(this, chrome::NOTIFICATION_WEB_STORE_PROMO_LOADED,
-        NotificationService::AllSources());
+        Source<Profile>(profile));
     registrar_.Add(this, chrome::NOTIFICATION_EXTENSION_INSTALL_ERROR,
-        NotificationService::AllSources());
+        Source<Profile>(profile));
   }
   if (pref_change_registrar_.IsEmpty()) {
     pref_change_registrar_.Init(