Remove Extension Loaded/Unloaded notifications from LocationBarView(Mac)

chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm

Index: chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
diff --git a/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm b/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
index 3e86f3632d830de34e02728f478d7528865ea38d..f87ac30b71c4cf9af239b104bf10908d672ca0ae 100644
--- a/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
+++ b/chrome/browser/ui/cocoa/location_bar/location_bar_view_mac.mm
@@ -14,7 +14,6 @@
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/app/chrome_command_ids.h"
 #import "chrome/browser/app_controller_mac.h"
-#include "chrome/browser/chrome_notification_types.h"
 #include "chrome/browser/command_updater.h"
 #include "chrome/browser/defaults.h"
 #include "chrome/browser/extensions/api/omnibox/omnibox_api.h"
@@ -64,7 +63,6 @@
 #include "components/search_engines/template_url.h"
 #include "components/search_engines/template_url_service.h"
 #include "components/translate/core/browser/language_state.h"
-#include "content/public/browser/notification_service.h"
 #include "content/public/browser/web_contents.h"
 #include "extensions/browser/extension_system.h"
 #include "extensions/common/extension.h"
@@ -143,14 +141,6 @@ LocationBarViewMac::LocationBarViewMac(AutocompleteTextField* field,
         new ContentSettingDecoration(type, this, profile));
   }
 
-  content::Source<Profile> profile_source = content::Source<Profile>(profile);
-  registrar_.Add(this,
-                 extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED,
-                 profile_source);
-  registrar_.Add(this,
-                 extensions::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED,
-                 profile_source);
-
   edit_bookmarks_enabled_.Init(
       prefs::kEditBookmarksEnabled, profile->GetPrefs(),
       base::Bind(&LocationBarViewMac::OnEditBookmarksEnabledChanged,
@@ -620,15 +610,6 @@ NSImage* LocationBarViewMac::GetKeywordImage(const base::string16& keyword) {
   return OmniboxViewMac::ImageForResource(IDR_OMNIBOX_SEARCH);
 }
 
-void LocationBarViewMac::Observe(int type,
-                                 const content::NotificationSource& source,
-                                 const content::NotificationDetails& details) {
-  DCHECK(type == extensions::NOTIFICATION_EXTENSION_LOADED_DEPRECATED ||
-         type == extensions::NOTIFICATION_EXTENSION_UNLOADED_DEPRECATED);
-
-  Update(NULL);
-}
-
 void LocationBarViewMac::ModelChanged(const SearchModel::State& old_state,
                                       const SearchModel::State& new_state) {
   if (UpdateMicSearchDecorationVisibility())