build: speed up windows download of external binaries (electron#17559)

MarshallOfSound · ckerr · commit ec5e0ef06e4e · 2019-03-26T20:22:54.000-05:00
diff --git a/script/lib/util.py b/script/lib/util.py
@@ -68,7 +68,7 @@ def download(text, url, path):
     web_file = urllib2.urlopen(url)
     file_size = int(web_file.info().getheaders("Content-Length")[0])
     downloaded_size = 0
-    block_size = 128
+    block_size = 4096
 
     ci = os.environ.get('CI') is not None
 
