if(mPluginWindow.type == nsPluginWindowType_Drawable)
if(mPluginWindow && mPluginWindow->type == nsPluginWindowType_Drawable)
void nsPluginInstanceOwner::ReleasePluginPort(nsPluginPort * pluginPort){#ifdef XP_WIN    if (mWidget != NULL)  {    if(mPluginWindow.type == nsPluginWindowType_Drawable)      mWidget->FreeNativeData((HDC)pluginPort, NS_NATIVE_GRAPHIC);  }#endif}