Record that MediaStream creates MediaStreamTracks

Record that MediaStream creates MediaStreamTracks

BUG=
R=alanknight@google.com

Committed: https://github.com/dart-lang/sdk/commit/faaff39aa9efea958f56e29ba6c9cecfb84d4668

[Harry Terkelsen, 2016-07-19 23:32:06]

het@google.com changed reviewers:
+ alanknight@google.com, sra@google.com

[Alan Knight, 2016-07-19 23:42:21]

https://codereview.chromium.org/2168473002/diff/20001/tools/dom/scripts/dartm...
File tools/dom/scripts/dartmetadata.py (right):

https://codereview.chromium.org/2168473002/diff/20001/tools/dom/scripts/dartm...
tools/dom/scripts/dartmetadata.py:263:
"@Creates('JSExtendableArray|MediaStreamTrack')",
The IDL says this returns sequence<MediaStreamTrack>. Is it true that it can
return an individual track?

I also wonder if there's a reason we have to specify these here, or if it's
historical and if we deleted the entry entirely what it would generate for that
IDL.

[sra1, 2016-07-19 23:44:23]

On 2016/07/19 23:42:21, Alan Knight wrote:
>
https://codereview.chromium.org/2168473002/diff/20001/tools/dom/scripts/dartm...
> File tools/dom/scripts/dartmetadata.py (right):
> 
>
https://codereview.chromium.org/2168473002/diff/20001/tools/dom/scripts/dartm...
> tools/dom/scripts/dartmetadata.py:263:
> "@Creates('JSExtendableArray|MediaStreamTrack')",
> The IDL says this returns sequence<MediaStreamTrack>. Is it true that it can
> return an individual track?

It doesn't return a track.  It creates a track that is in the sequence (List)
that it returns.

> 
> I also wonder if there's a reason we have to specify these here, or if it's
> historical and if we deleted the entry entirely what it would generate for
that
> IDL.

[Alan Knight, 2016-07-19 23:53:14]

lgtm

Ah, right. @Creates, not @Returns. And I tried it and the metadata doesn't work.
So good.

[Harry Terkelsen, 2016-07-20 00:00:12]

Description was changed from

==========
Record that MediaStream creates MediaStreamTracks

BUG=
==========

to

==========
Record that MediaStream creates MediaStreamTracks

BUG=
R=alanknight@google.com

Committed:
https://github.com/dart-lang/sdk/commit/faaff39aa9efea958f56e29ba6c9cecfb84d4668
==========

[Harry Terkelsen, 2016-07-20 00:00:13]

Committed patchset #2 (id:20001) manually as
faaff39aa9efea958f56e29ba6c9cecfb84d4668 (presubmit successful).