[win] Change app launcher profile indicator to be a menu.

ui/app_list/search_box_model_observer.h

Index: ui/app_list/search_box_model_observer.h
diff --git a/ui/app_list/search_box_model_observer.h b/ui/app_list/search_box_model_observer.h
index eb9d22c8410748ead625782f3b7d2e1d1c5b386b..b4cc40c2d9a3f1dde7b9c716c9665d2baf4148eb 100644
--- a/ui/app_list/search_box_model_observer.h
+++ b/ui/app_list/search_box_model_observer.h
@@ -23,15 +23,6 @@ class APP_LIST_EXPORT SearchBoxModelObserver {
   // Invoked when text is changed.
   virtual void TextChanged() = 0;
 
-  // Invoked when user icon is changed.
-  virtual void UserIconChanged() = 0;
-
-  // Invoked when text is changed.
-  virtual void UserIconTooltipChanged() = 0;
-
-  // Invoked when text is changed.
-  virtual void UserIconEnabledChanged() = 0;
-
  protected:
   virtual ~SearchBoxModelObserver() {}
 };