Remove Extension Loaded/Unloaded notifications from LocationBarView(Mac)

chrome/browser/ui/views/location_bar/location_bar_view.h

Index: chrome/browser/ui/views/location_bar/location_bar_view.h
diff --git a/chrome/browser/ui/views/location_bar/location_bar_view.h b/chrome/browser/ui/views/location_bar/location_bar_view.h
index 9e27ce960f3e08b65962a1e7d99003ce4167bce3..d8f812f6d2390d62410583a0b6b562a5d62299d3 100644
--- a/chrome/browser/ui/views/location_bar/location_bar_view.h
+++ b/chrome/browser/ui/views/location_bar/location_bar_view.h
@@ -20,8 +20,6 @@
 #include "chrome/browser/ui/views/extensions/extension_popup.h"
 #include "chrome/browser/ui/views/omnibox/omnibox_view_views.h"
 #include "components/search_engines/template_url_service_observer.h"
-#include "content/public/browser/notification_observer.h"
-#include "content/public/browser/notification_registrar.h"
 #include "ui/gfx/animation/animation_delegate.h"
 #include "ui/gfx/font.h"
 #include "ui/gfx/rect.h"
@@ -85,7 +83,6 @@ class LocationBarView : public LocationBar,
                         public DropdownBarHostDelegate,
                         public gfx::AnimationDelegate,
                         public TemplateURLServiceObserver,
-                        public content::NotificationObserver,
                         public SearchModelObserver {
  public:
   // The location bar view's class name.
@@ -406,11 +403,6 @@ class LocationBarView : public LocationBar,
   // TemplateURLServiceObserver:
   virtual void OnTemplateURLServiceChanged() OVERRIDE;
 
-  // content::NotificationObserver:
-  virtual void Observe(int type,
-                       const content::NotificationSource& source,
-                       const content::NotificationDetails& details) OVERRIDE;
-
   // SearchModelObserver:
   virtual void ModelChanged(const SearchModel::State& old_state,
                             const SearchModel::State& new_state) OVERRIDE;
@@ -553,9 +545,6 @@ class LocationBarView : public LocationBar,
   int current_omnibox_width_;
   int ending_omnibox_width_;
 
-  // Used to register for notifications received by NotificationObserver.
-  content::NotificationRegistrar registrar_;
-
   DISALLOW_COPY_AND_ASSIGN(LocationBarView);
 };