GitLab

Commit b6c4e590 ("Grant generic sensor permission for Android WebView")
started always granting sensors permission requests in
GetPermissionStatus().

However, commit 94c082d4 ("[sensors] Add sensors usage indicator") caused
SensorProviderProxyImpl to query PermissionManager via RequestPermission()
before making a given sensor available.

The Android WebView case was overlooked, and its RequestPermission()
implementation was still denying all requests for sensors. Update the policy
to always-grant, and while at it make CancelPermissionRequest() not show a
"not implemented" error for sensor requests, as the requests are always
granted anyway.

Doing so re-allows the WebView to provide device motion/orientation data to
users, while SensorProviderImpl::GetSensor() still prevents other types of
sensors from being accessed, just like before.

Bug: 852543
Change-Id: I3bd45f955f8ff9dca67b7b9bda940590dce258f1
Reviewed-on: https://chromium-review.googlesource.com/1104417Reviewed-by: Tao Bai <michaelbai@chromium.org>
Reviewed-by: Jun Cai <juncai@chromium.org>
Commit-Queue: Raphael Kubo da Costa <raphael.kubo.da.costa@intel.com>
Cr-Commit-Position: refs/heads/master@{#568068}