The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/e7a484c5236006fa11eeec6972afc25a04cbcbc4

commit e7a484c5236006fa11eeec6972afc25a04cbcbc4
Author: Brandon Jones <bajones@chromium.org>
Date: Fri Jan 11 20:36:58 2019

Breaking dependencies on XRDevice

Remove as many references to XRDevice as possible without completely
removing the interface itself. All functionality previously contained
in XRDevice is shifted into the XR interface. Done purely as a method of
reducing the size of the XRDevice removal CL.

Bug: 916299
TBR: mcasas
Change-Id: I01696972a7e56e196eedfc6ffe248789520a8f9e
Reviewed-on: https://chromium-review.googlesource.com/c/1405880
Commit-Queue: Brandon Jones <bajones@chromium.org>
Reviewed-by: Klaus Weidner <klausw@chromium.org>
Cr-Commit-Position: refs/heads/master@{#622128}
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/canvas/htmlcanvas/canvas_context_creation_attributes_helpers.cc
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/webgl/webgl_context_attribute_helpers.cc
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr.cc
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr.h
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_canvas_input_provider.cc
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_device.cc
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_device.h
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_frame_provider.cc
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_frame_provider.h
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_session.cc
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_session.h
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_session.idl
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/renderer/modules/xr/xr_webgl_layer.cc
[delete] https://crrev.com/641e3ce0cd54b64d5eea457f22e98352f9ee09c8/third_party/blink/web_tests/external/wpt/feature-policy/reporting/xr-reporting.https-expected.txt
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/web_tests/external/wpt/feature-policy/reporting/xr-reporting.https.html.headers
[delete] https://crrev.com/641e3ce0cd54b64d5eea457f22e98352f9ee09c8/third_party/blink/web_tests/external/wpt/webxr/xrSession_device.https.html
[modify] https://crrev.com/e7a484c5236006fa11eeec6972afc25a04cbcbc4/third_party/blink/web_tests/webexposed/global-interface-listing-expected.txt

This issue has an owner, a component and a priority, but is still listed as untriaged or unconfirmed. By definition, this bug is triaged. Changing status to "assigned". Please reach out to me if you disagree with how I've done this.