GitLab

chrome/services/sharing/*
- Introduced PayloadListener::GetFileForPayload for requesting
  file from browser process based on payload_id
- Introduced PayloadListener::OnPayloadReceived for passing incoming
  payload

chrome/browser/nearby_sharing/nearby_connections_manager*
- Browser side usage of the above APIs
  NearbyConnectionsManager stores the payload in a map, and can be
  retrieved via GetIncomingPayload
- NearbyConnectionsManager provides API to register base::FilePath for
  specific payload_id. payload_id are sent via Nearby Share specific
  introduction frames from NearbyDecoder.

Bug: 1076008
Change-Id: I177986dba2a66805085539d2b30a282ec948cf43
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2352792Reviewed-by: Alex Gough <ajgo@chromium.org>
Reviewed-by: Richard Knoll <knollr@chromium.org>
Reviewed-by: Himanshu Jaju <himanshujaju@chromium.org>
Commit-Queue: Alex Chau <alexchau@chromium.org>
Cr-Commit-Position: refs/heads/master@{#800127}