Sync dpdb.json with webvrrocks/webvr-polyfill-dpdb for consistency
Sync dpdb.json with webvrrocks/webvr-polyfill-dpdb for consistency

borismus/webvr-polyfill,immersive-web/webvr-polyfill,jsantell/webvr-polyfill,immersive-web/webvr-polyfill,borismus/webvr-polyfill,jsantell/webvr-polyfill