RefCounted types should not have public destructors, content/browser part 2

content/common/indexed_db/indexed_db_message_filter.h

Index: content/common/indexed_db/indexed_db_message_filter.h
diff --git a/content/common/indexed_db/indexed_db_message_filter.h b/content/common/indexed_db/indexed_db_message_filter.h
index 348678473d0759d359c3ff51d1cc7cc59ddd5ef3..57eed0faa99c43779ec37af5500d7a40f85879d3 100644
--- a/content/common/indexed_db/indexed_db_message_filter.h
+++ b/content/common/indexed_db/indexed_db_message_filter.h
@@ -13,11 +13,13 @@ class IndexedDBDispatcher;
 class IndexedDBMessageFilter : public IPC::ChannelProxy::MessageFilter {
  public:
   IndexedDBMessageFilter();
-  virtual ~IndexedDBMessageFilter();
 
   // IPC::Channel::Listener implementation.
   virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
 
+ protected:
+  virtual ~IndexedDBMessageFilter();
+
  private:
   void DispatchMessage(const IPC::Message& msg);
   scoped_refptr<base::MessageLoopProxy> main_thread_loop_proxy_;