Remove raw handles from base::win::RegKey

content/browser/plugin_service_impl.h

Index: content/browser/plugin_service_impl.h
diff --git a/content/browser/plugin_service_impl.h b/content/browser/plugin_service_impl.h
index 8cb176aad24ca693b4431314bd5f40e156d421e5..39cd8fdf49e17dc8f078fef89775e922d5e047b0 100644
--- a/content/browser/plugin_service_impl.h
+++ b/content/browser/plugin_service_impl.h
@@ -166,7 +166,9 @@ class CONTENT_EXPORT PluginServiceImpl
   PluginServiceImpl();
   virtual ~PluginServiceImpl();
 
-  void OnWaitableEventSignaled(base::WaitableEvent* waitable_event);
+#if defined(OS_WIN)
+  void OnKeyChanged(base::win::RegKey* key);
+#endif
 
   // Returns the plugin process host corresponding to the plugin process that
   // has been started by this service. Returns NULL if no process has been
@@ -224,10 +226,6 @@ class CONTENT_EXPORT PluginServiceImpl
   // Registry keys for getting notifications when new plugins are installed.
   base::win::RegKey hkcu_key_;
   base::win::RegKey hklm_key_;
-  scoped_ptr<base::WaitableEvent> hkcu_event_;
-  scoped_ptr<base::WaitableEvent> hklm_event_;
-  base::WaitableEventWatcher hkcu_watcher_;
-  base::WaitableEventWatcher hklm_watcher_;
 #endif
 
 #if defined(OS_POSIX) && !defined(OS_OPENBSD) && !defined(OS_ANDROID)