tree 9427ce434585016d7b78baaedf3dbb01dc1abc18
parent 6f730f59423c5f045b026703f72eec86b95699e3
author Ruchira Ravoori <ravoorir@google.com> 1544484553 -0800
committer CQ bot account: commit-bot@chromium.org <commit-bot@chromium.org> 1544489798 +0000

[usb_request_t] Get rid of context field.

The context field is used by the xhci layer to remember the current TRB
that is being processed. This should not be part of the public portion
of usb request. Move it to the xhci's internal context.

Test: Pixelbook: fx serve. fx shell. lsusb. iochk on usb mass storage. audio -d 1 tone.
Astro: Netboot. lsusb.

Change-Id: I29c2a7292079c45e163b7e30e0245f5d34d08490