RefCounted types should not have public destructors, delegate cleanup

chrome/browser/nacl_host/nacl_process_host.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
 #define CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_
 #pragma once
 
 #include "build/build_config.h"
 
@@ skipping 104 matching lines @@
 
   GURL manifest_url_;
 
 #if defined(OS_WIN)
   // This field becomes true when the broker successfully launched
   // the NaCl loader.
   bool process_launched_by_broker_;
 #elif defined(OS_LINUX)
   bool wait_for_nacl_gdb_;
   MessageLoopForIO::FileDescriptorWatcher nacl_gdb_watcher_;
-  scoped_ptr<MessageLoopForIO::Watcher> nacl_gdb_watcher_delegate_;
+
+  class NaClGdbWatchDelegate;
+  scoped_ptr<NaClGdbWatchDelegate> nacl_gdb_watcher_delegate_;
 #endif
   // The ChromeRenderMessageFilter that requested this NaCl process.  We use
   // this for sending the reply once the process has started.
   scoped_refptr<ChromeRenderMessageFilter> chrome_render_message_filter_;
 
   // The reply message to send. We must always send this message when the
   // sub-process either succeeds or fails to unblock the renderer waiting for
   // the reply. NULL when there is no reply to send.
   IPC::Message* reply_msg_;
 #if defined(OS_WIN)
@@ skipping 11 matching lines @@
   base::WeakPtrFactory<NaClProcessHost> weak_factory_;
 
   scoped_ptr<content::BrowserChildProcessHost> process_;
 
   bool enable_exception_handling_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClProcessHost);
 };
 
 #endif  // CHROME_BROWSER_NACL_HOST_NACL_PROCESS_HOST_H_