Part 1: Convert base::Bind to Once/Repeating in //chrome/browser/download/

This CL is part1 of converting base::Bind to Once/Repeating in
//chrome/browser/download/.

Bug: 1007635
Change-Id: I771350334ee6c07deab1c224cb186e53ab5466b6
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2465095
Commit-Queue: Leon Han <leon.han@intel.com>
Reviewed-by: Xing Liu <xingliu@chromium.org>
Reviewed-by: Leon Han <leon.han@intel.com>
Cr-Commit-Position: refs/heads/master@{#817424}

diff --git a/AUTHORS b/AUTHORS
index 427ccec..9332e18 100644
--- a/AUTHORS
+++ b/AUTHORS

@@ -231,6 +231,7 @@
 Daniel Waxweiler <daniel.waxweiler@gmail.com>
 Dániel Bátyai <dbatyai@inf.u-szeged.hu>
 Dániel Vince <vinced@inf.u-szeged.hu>
+Daoming Qiu <daoming.qiu@intel.com>
 Darshini KN <kn.darshini@samsung.com>
 Dave Vandyke <kzar@kzar.co.uk>
 David Benjamin <davidben@mit.edu>