[mediacapture-main] Pull Request: make applyConstraints arg optional to fix webidl error

jan-ivar has just submitted a new pull request for 
https://github.com/w3c/mediacapture-main:

== make applyConstraints arg optional to fix webidl error ==
```
 0:17.87 WebIDL.WebIDLError: error: Dictionary argument or union 
argument containing a dictionary not followed by a required argument 
must be optional, 
/Users/Jan/moz/mozilla-central/dom/webidl/MediaStreamTrack.webidl line
 75:67
 0:17.87     Promise<void>          applyConstraints 
(MediaTrackConstraints constraints);
 0:17.87
                                                                    ^
```

>From https://heycam.github.io/webidl/#idl-operations

"If the type of an argument is a dictionary type or a union type that 
has a dictionary type as one of its flattened member types, and that 
dictionary type and its ancestors have no required members, and the 
argument is either the final argument or is followed only by optional 
arguments, then the argument MUST be specified as optional. Such 
arguments are always considered to have a default value of an empty 
dictionary, unless otherwise specified."

See https://github.com/w3c/mediacapture-main/pull/245

Received on Thursday, 17 September 2015 17:24:46 UTC