Remove NOTIFICATION_FAVICON_UPDATED

components/favicon/core/favicon_driver_observer.h

Index: components/favicon/core/favicon_driver_observer.h
diff --git a/components/favicon/core/favicon_driver_observer.h b/components/favicon/core/favicon_driver_observer.h
index cc134d23a99a7357d9db162e4091a2dadee9dc8e..eb3fd48f61ef712aa9fe1510eb5087019d504552 100644
--- a/components/favicon/core/favicon_driver_observer.h
+++ b/components/favicon/core/favicon_driver_observer.h
@@ -13,6 +13,8 @@ class Image;
 
 namespace favicon {
 
+class FaviconDriver;
+
 // An observer implemented by classes which are interested in event from
 // FaviconDriver.
 class FaviconDriverObserver {
@@ -24,6 +26,11 @@ class FaviconDriverObserver {
   // storage.
   virtual void OnFaviconAvailable(const gfx::Image& image) = 0;
 
+  // Called when favicon has changed for the current page. |icon_url_changed| is
+  // true if the favicon URL has also changed.
+  virtual void OnFaviconUpdated(FaviconDriver* favicon_driver,
+                                bool icon_url_changed) = 0;
+
  private:
   DISALLOW_COPY_AND_ASSIGN(FaviconDriverObserver);
 };