Add link to WebUSB Test API specification

Add link to WebUSB Test API specification

Now that it is published online instead of including the WebIDL
definitions for the WebUSB Test API inline in the polyfill this patch
replaces them with a link to the editor's draft.

BUG=705734
Review-Url: https://codereview.chromium.org/2829643003
Cr-Commit-Position: refs/heads/master@{#466714}
Committed: https://chromium.googlesource.com/chromium/src/+/702856a2f7731a9e85ada740247b2c64d13704fb

[Reilly Grant (use Gerrit), 2017-04-20 01:16:19]

reillyg@chromium.org changed reviewers:
+ jyasskin@chromium.org

[Reilly Grant (use Gerrit), 2017-04-20 01:16:20]

PTAL (trivial)

[Reilly Grant (use Gerrit), 2017-04-20 01:16:25]

The CQ bit was checked by reillyg@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-04-20 01:17:08]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-20 04:16:55]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-04-20 04:16:56]

Dry run: This issue passed the CQ dry run.

[Jeffrey Yasskin, 2017-04-24 17:38:36]

lgtm

[Reilly Grant (use Gerrit), 2017-04-24 17:52:46]

The CQ bit was checked by reillyg@chromium.org

[commit-bot: I haz the power, 2017-04-24 17:53:33]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-24 19:25:47]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1493056366075010, "parent_rev":
"8bcd128f778f704d98d956c773cc6ddb4effa6f8", "commit_rev":
"702856a2f7731a9e85ada740247b2c64d13704fb"}

[commit-bot: I haz the power, 2017-04-24 19:26:04]

Description was changed from

==========
Add link to WebUSB Test API specification

Now that it is published online instead of including the WebIDL
definitions for the WebUSB Test API inline in the polyfill this patch
replaces them with a link to the editor's draft.

BUG=705734
==========

to

==========
Add link to WebUSB Test API specification

Now that it is published online instead of including the WebIDL
definitions for the WebUSB Test API inline in the polyfill this patch
replaces them with a link to the editor's draft.

BUG=705734

Review-Url: https://codereview.chromium.org/2829643003
Cr-Commit-Position: refs/heads/master@{#466714}
Committed:
https://chromium.googlesource.com/chromium/src/+/702856a2f7731a9e85ada740247b...
==========

[commit-bot: I haz the power, 2017-04-24 19:26:05]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/702856a2f7731a9e85ada740247b...