Indexeddb chunk store in browser

lib/torrent.js

@@ -45,7 +45,8 @@ const PIPELINE_MAX_DURATION = 1
 const RECHOKE_INTERVAL = 10000 // 10 seconds
 const RECHOKE_OPTIMISTIC_DURATION = 2 // 30 seconds
 
-const FILESYSTEM_CONCURRENCY = 2
+// IndexedDB chunk stores used in the browser benefit from maximum concurrency
+const FILESYSTEM_CONCURRENCY = process.browser ? Infinity : 2
 
 const RECONNECT_WAIT = [ 1000, 5000, 15000 ]
 
@@ -459,7 +460,8 @@ class Torrent extends EventEmitter {
           length: file.length,
           offset: file.offset
         })),
-        length: this.length
+        length: this.length,
+        name: this.infoHash
       })
     )