1360438 - Add telemetry to report whether EME is used in a secure context

Status: RESOLVED FIXED

(Core :: Audio/Video: Playback, enhancement, P3)

Description

[Chris Pearce [:cpearce (Not reading bugmail)]]

To inform our decision on when to do bug 1322517, we should add telemetry to report whether EME is used on a secure or non-secure context.

Comment 1

[Chris Pearce [:cpearce (Not reading bugmail)]]

Attachment: Bug 1360438 Add telemetry to report whether navigator.requestMediaKeySystemAccess() was called in a secure context.

The EME spec requires EME to be only usuable from a secure context, for example
from an origin served over HTTPS. We still don't enforce this, and Chrome is
going to start enforcing this in M58. So to inform our decision as to when to
start enforcing this, it would be useful to know how many sites we'd break if
we started enforcing this.

So this patch adds telemetry to tell us the how often EME is used on secure
and non-secure contexts.

Review commit: https://reviewboard.mozilla.org/r/134594/diff/#index_header
See other reviews: https://reviewboard.mozilla.org/r/134594/

Comment 2

[Boris Zbarsky [:bzbarsky]]

Comment on attachment 8862731 [details]
Bug 1360438 Add telemetry to report whether navigator.requestMediaKeySystemAccess() was called in a secure context.

https://reviewboard.mozilla.org/r/134594/#review137716

r=me

Comment 3

[François Marier [:francois]]

Comment on attachment 8862731 [details]
Bug 1360438 Add telemetry to report whether navigator.requestMediaKeySystemAccess() was called in a secure context.

https://reviewboard.mozilla.org/r/134594/#review137800

datareview+

Comment 4

[Pulsebot]

Pushed by [e-mail]:
https://hg.mozilla.org/integration/autoland/rev/796fdd50c2eb
Add telemetry to report whether navigator.requestMediaKeySystemAccess() was called in a secure context. r=bz,francois

Comment 5

[Sebastian Hengst [:aryx] (needinfo me if it's about an intermittent or backout)]

https://hg.mozilla.org/mozilla-central/rev/796fdd50c2eb