QueryInfoCompletionCallback 30 chrome/browser/extensions/api/system_info/system_info_provider.cc const QueryInfoCompletionCallback& callback) { QueryInfoCompletionCallback 49 chrome/browser/extensions/api/system_info/system_info_provider.cc QueryInfoCompletionCallback callback = callbacks_.front(); QueryInfoCompletionCallback 39 chrome/browser/extensions/api/system_info/system_info_provider.h typedef std::queue<QueryInfoCompletionCallback> CallbackQueue; QueryInfoCompletionCallback 63 chrome/browser/extensions/api/system_info/system_info_provider.h void StartQueryInfo(const QueryInfoCompletionCallback& callback);