Reland "[CrOS Bluetooth] Add HidDisconnected metric HID detection
screen."

This reverts commit 2680c70e34d1d7b3beb305bc638626a46fb6bf06.

Reason for revert: Fix crash caused by device key not existing
when recording a disconnect. Empirically, it was found that when a
device is removed, several other devices are also removed from
input_device_manager that were not originally registered as added
by HIDDetectionScreen. These devices would cause a crash because
they would not be present in the devices map. This CL fixes this by
checking if the device is found in the map before recording the
disconnect.

Original change's description:
> [CrOS Bluetooth] Add HidDisconnected metric HID detection screen.
>
> Add a RecordHidDisconnected member to the hid_detection_utils.h
> class to record when a HID has been disconnected. Emit
> HidDisconnected histogram metric for each HID disconnected while
> the HID detection screen is shown. Add a test
> AddRemoveDevicesAfterScreen to make sure HidConnected and
> HidDisconnected are not recorded outside of the HID detection
> screen.

Change-Id: I41e5f9057b794d225fabe98d14104435ef1c51a5
Fixed: b/235083051
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/3718443
Commit-Queue: Andrew Dear <andrewdear@google.com>
Reviewed-by: Gordon Seto <gordonseto@google.com>
Reviewed-by: Roman Sorokin <rsorokin@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1026372}