minor feature: Added experimental cookie encryption support behind an Electron Fuse. #29493 (Also in 14).Added support for deURLs such as chrome://gpucrash. #29491 (Also in 14).missing 'fetch' event in service workers for requests using a registered protocol. #29446 (Also in 12, 14).pressing Alt with mouse click results in toggling menu bar. #29450 (Also in 12, 14).pressing Alt+Shift and Alt+Ctrl toggling menu bar on KDE. #29443 (Also in 12, 14).Backported for 1090441,1173656,1181434,1188117. #29494.using custom v8 snapshots on Apple Silicon. #29339 (Also in 12).Updated Chromium to 91.0.4472.77. #29321.Documentation changes: #29430.