Revert of HID-detection screen moved to screenContext.

Revert of HID-detection screen moved to screenContext. (patchset #7 id:120001 of https://codereview.chromium.org/898453002/)

Reason for revert:
I believe this is causing interactive_ui_tests failures:

https://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Tests%20%28dbg%29%281%29

LoginUITest.OobeCatchException
LoginUITest.OobeNoExceptions

LoginUITest.OobeCatchException (run #4):
[ RUN      ] LoginUITest.OobeCatchException
[1:1:0211/103529:ERROR:memory_mapped_file.cc(42)] Couldn't open /tmp/run_tha_testo_ZzaC/out/Debug/chrome_200_percent.pak
[1:1:0211/103529:ERROR:data_pack.cc(78)] Failed to mmap datapack
[31306:31306:0211/103529:INFO:audio_manager_pulse.cc(258)] Failed to connect to the context.  Error: Connection refused
[31306:31306:0211/103529:ERROR:memory_mapped_file.cc(42)] Couldn't open /tmp/run_tha_testo_ZzaC/out/Debug/chrome_200_percent.pak
[31306:31306:0211/103529:ERROR:data_pack.cc(78)] Failed to mmap datapack
Xlib:  extension "RANDR" missing on display ":9".
[31306:31306:0211/103529:WARNING:child_account_service.cc(322)] User instance wasn't found while setting child account flag.
[31306:31306:0211/103529:WARNING:data_reduction_proxy_settings.cc(366)] SPDY proxy OFF at startup
[31306:31306:0211/103529:ERROR:hid_detection_screen_handler.cc(35)] HIDDetectionScreenHandler::HIDDetectionScreenHandler
[31306:31306:0211/103529:ERROR:hid_detection_screen_handler.cc(79)] HIDDetectionScreenHandler::CheckIsScreenRequired 0x325bf0183920
[31306:31324:0211/103529:WARNING:freezer_cgroup_process_manager.cc(58)] Cgroup freezer does not exist or is not writable. Unable to freeze renderer processes.
../../chrome/browser/chromeos/login/test/js_checker.cc:62: Failure
Value of: GetBool(expression)
  Actual: false
Expected: true
cr.ErrorStore.getInstance().length == 0
../../chrome/browser/chromeos/login/test/js_checker.cc:62: Failure
Value of: GetBool(expression)
  Actual: false
Expected: true
cr.ErrorStore.getInstance().length == 1
../../chrome/browser/chromeos/login/test/js_checker.cc:62: Failure
Value of: GetBool(expression)
  Actual: false
Expected: true
cr.ErrorStore.getInstance().length == 2
[7:8:0211/103533:WARNING:channel.cc(547)] Failed to send message to ack remove remote endpoint (local ID 1, remote ID 1)
[7:8:0211/103533:WARNING:channel.cc(547)] Failed to send message to ack remove remote endpoint (local ID 2147483648, remote ID 2)
[  FAILED  ] LoginUITest.OobeCatchException, where TypeParam =  and GetParam() =  (4704 ms)

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

TBR=antrim@chromium.org,merkulova@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=433797
Committed: https://crrev.com/2ad7324324f1a52d37fb0ed9de39559c7d431082
Cr-Commit-Position: refs/heads/master@{#315804}

[dewittj, 2015-02-11 19:10:46]

Created Revert of HID-detection screen moved to screenContext.

[commit-bot: I haz the power, 2015-02-11 19:12:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/915133002/1

[commit-bot: I haz the power, 2015-02-11 19:13:20]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-11 19:14:22]

Patchset 1 (id:??) landed as
https://crrev.com/2ad7324324f1a52d37fb0ed9de39559c7d431082
Cr-Commit-Position: refs/heads/master@{#315804}