tree c482f124c80a28cc0a425268d0a381418a54d78c
parent b8165be8084adfe6fd056355a0ce0f4d788ae72d
author Ruchira Ravoori <ravoorir@google.com> 1544502251 -0800
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1544567120 +0000

[xdc] Use internal complete_cb.

With usb request having private regions for each layer in the stack,
the complete callback and their contexts should not be part of the public
part of the usb-request. This changeset makes xdc use its internal
contex to save and retreive the complete_cb.

Test: zircon build

Change-Id: Ie8506968ccc73701a2bbd35b5498a513efaa8c38