RefCounted types should not have public destructors, chrome/browser/ part 6

chrome/browser/background/background_contents_service.cc

Index: chrome/browser/background/background_contents_service.cc
diff --git a/chrome/browser/background/background_contents_service.cc b/chrome/browser/background/background_contents_service.cc
index 150f8a94b01f44d0e8f8b7d2ff97a6d56ef280aa..d6dc9a71bdaf04fc88d350bb7f3d137882095afb 100644
--- a/chrome/browser/background/background_contents_service.cc
+++ b/chrome/browser/background/background_contents_service.cc
@@ -61,9 +61,6 @@ class CrashNotificationDelegate : public NotificationDelegate {
         extension_id_(extension->id()) {
   }
 
-  ~CrashNotificationDelegate() {
-  }
-
   void Display() {}
 
   void Error() {}
@@ -93,6 +90,8 @@ class CrashNotificationDelegate : public NotificationDelegate {
   }
 
  private:
+  virtual ~CrashNotificationDelegate() {}
+
   Profile* profile_;
   bool is_hosted_app_;
   std::string extension_id_;