Shorten delay before mounting SMB share

Currently, we wait until the first batch of shares is returned from host
discovery before attempting to Mount a share so that name resolution can
be performed. This change switches to using the GatherSharesInNetwork method that
takes a HostDiscoveryResponse callback so that the delay is shortened.

Bug: chromium:757625
Change-Id: I22cf5fd48bdcc633fa4d7f2f08b1e6f7e10af764
Reviewed-on: https://chromium-review.googlesource.com/1211947
Commit-Queue: Bailey Berro <baileyberro@chromium.org>
Reviewed-by: Scott Chen <scottchen@chromium.org>
Cr-Commit-Position: refs/heads/master@{#590069}
2 files changed