RefCounted types should not have public destructors, delegate cleanup

chrome/browser/nacl_host/nacl_process_host.h

Index: chrome/browser/nacl_host/nacl_process_host.h
diff --git a/chrome/browser/nacl_host/nacl_process_host.h b/chrome/browser/nacl_host/nacl_process_host.h
index 3a2d5fbab342d6dc9c0b562c90b8bf019af02146..7c9945ed3e23097eab1f7a44c07a95741e9824c0 100644
--- a/chrome/browser/nacl_host/nacl_process_host.h
+++ b/chrome/browser/nacl_host/nacl_process_host.h
@@ -125,7 +125,9 @@ class NaClProcessHost : public content::BrowserChildProcessHostDelegate {
 #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.