Remove NOTIFICATION_FAVICON_UPDATED

chrome/browser/extensions/api/tabs/tabs_event_router.h

Index: chrome/browser/extensions/api/tabs/tabs_event_router.h
diff --git a/chrome/browser/extensions/api/tabs/tabs_event_router.h b/chrome/browser/extensions/api/tabs/tabs_event_router.h
index 73ee2c95945800530d26e0e89ebcf410b8c8dc4a..501c5fd749b8d22659de59ff357c1135be1ad2de 100644
--- a/chrome/browser/extensions/api/tabs/tabs_event_router.h
+++ b/chrome/browser/extensions/api/tabs/tabs_event_router.h
@@ -10,13 +10,17 @@
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
+#include "base/scoped_observer.h"
 #include "chrome/browser/extensions/api/tabs/tabs_api.h"
 #include "chrome/browser/ui/browser_list_observer.h"
 #include "chrome/browser/ui/tabs/tab_strip_model_observer.h"
+#include "components/favicon/core/favicon_driver_observer.h"
 #include "components/ui/zoom/zoom_observer.h"
 #include "content/public/browser/notification_registrar.h"
 #include "extensions/browser/event_router.h"
 
+class FaviconTabHelper;
+
 namespace content {
 class WebContents;
 }
@@ -30,6 +34,7 @@ namespace extensions {
 class TabsEventRouter : public TabStripModelObserver,
                         public chrome::BrowserListObserver,
                         public content::NotificationObserver,
+                        public favicon::FaviconDriverObserver,
                         public ui_zoom::ZoomObserver {
  public:
   explicit TabsEventRouter(Profile* profile);
@@ -76,6 +81,11 @@ class TabsEventRouter : public TabStripModelObserver,
   void OnZoomChanged(
       const ui_zoom::ZoomController::ZoomChangedEventData& data) override;
 
+  // favicon::FaviconDriverObserver.
+  void OnFaviconAvailable(const gfx::Image& image) override;
+  void OnFaviconUpdated(favicon::FaviconDriver* favicon_driver,
+                        bool icon_url_changed) override;
+
  private:
   // "Synthetic" event. Called from TabInsertedAt if new tab is detected.
   void TabCreatedAt(content::WebContents* contents, int index, bool active);
@@ -169,6 +179,8 @@ class TabsEventRouter : public TabStripModelObserver,
   // The main profile that owns this event router.
   Profile* profile_;
 
+  ScopedObserver<FaviconTabHelper, TabsEventRouter> favicon_scoped_observer_;
+
   DISALLOW_COPY_AND_ASSIGN(TabsEventRouter);
 };