Chromium Code Reviews| Index: content/browser/plugin_service.cc | 
| =================================================================== | 
| --- content/browser/plugin_service.cc (revision 110950) | 
| +++ content/browser/plugin_service.cc (working copy) | 
| @@ -332,6 +332,7 @@ | 
| const GURL& page_url, | 
| const std::string& mime_type, | 
| PluginProcessHost::Client* client) { | 
| + DCHECK(BrowserThread::CurrentlyOn(BrowserThread::IO)); | 
| DCHECK(!ContainsKey(pending_plugin_clients_, client)); | 
| pending_plugin_clients_.insert(client); |