internal override void OnDispose(IntPtr nativePtr)
 {
     if (m_IsUnstable != null)
     {
         m_IsUnstable = null;
         CfxApi.WebPluginUnstableCallback.cfx_web_plugin_unstable_callback_set_managed_callback(NativePtr, 0, IntPtr.Zero);
     }
     base.OnDispose(nativePtr);
 }
 internal override void OnDispose(IntPtr nativePtr)
 {
     if(m_IsUnstable != null) {
         m_IsUnstable = null;
         CfxApi.cfx_web_plugin_unstable_callback_set_managed_callback(NativePtr, 0, IntPtr.Zero);
     }
     base.OnDispose(nativePtr);
 }