UploadCallbackMap  110 chrome/browser/sync_file_system/drive_backend_v1/api_util.h   typedef std::map<UploadKey, UploadFileCallback> UploadCallbackMap;
UploadCallbackMap   70 components/domain_reliability/uploader.cc   typedef std::map<const net::URLFetcher*, UploadCallback> UploadCallbackMap;