You're right. I'll remove [NoInterfaceObject].

I guess we've forgotten when spec changed: https://github.com/jyasskin/web-bluetooth-1/commit/240dc987cc824fef692c8a561b7ad8afe6fcef93

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/348e99c468e81a2cd30359402221b37aeebb8cd0

commit 348e99c468e81a2cd30359402221b37aeebb8cd0
Author: beaufort.francois <beaufort.francois@gmail.com>
Date: Fri Dec 16 14:36:45 2016

bluetooth: Remove [NoInterfaceObject] from Bluetooth interface

BUG= 674540 

Review-Url: https://codereview.chromium.org/2582543002
Cr-Commit-Position: refs/heads/master@{#439101}

[modify] https://crrev.com/348e99c468e81a2cd30359402221b37aeebb8cd0/third_party/WebKit/LayoutTests/imported/wpt/html/browsers/origin/cross-origin-objects/cross-origin-objects-exceptions-expected.txt
[modify] https://crrev.com/348e99c468e81a2cd30359402221b37aeebb8cd0/third_party/WebKit/LayoutTests/virtual/stable/webexposed/global-interface-listing-expected.txt
[modify] https://crrev.com/348e99c468e81a2cd30359402221b37aeebb8cd0/third_party/WebKit/LayoutTests/webexposed/global-interface-listing-expected.txt
[modify] https://crrev.com/348e99c468e81a2cd30359402221b37aeebb8cd0/third_party/WebKit/Source/modules/bluetooth/Bluetooth.idl