Revert of HID-detection screen moved to screenContext. (patchset #8 id:140001 of...

Revert of HID-detection screen moved to screenContext. (patchset #8 id:140001 of https://codereview.chromium.org/898453002/)

Reason for revert:
This change has introduced an error on two Chrome OS tests:

LoginUITest.OobeCatchException
LoginUITest.OobeNoExceptions

Full logs:
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29/builds/37465

Original issue's description:
> HID-detection screen moved to screenContext.
>
> BUG=433797, 456779
>
> Committed: https://crrev.com/cc4feaa0828ee6d58c6a3eecf67e9d6bf72588a7
> Cr-Commit-Position: refs/heads/master@{#315788}
>
> Committed: https://crrev.com/7a5f7055c7a3e4b0e6a678187bb92541c116ab76
> Cr-Commit-Position: refs/heads/master@{#315981}

TBR=antrim@chromium.org,merkulova@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=433797, 456779

Review URL: https://codereview.chromium.org/921583005

Cr-Commit-Position: refs/heads/master@{#316015}