Media Session: implement algorithm for updating a media element's session (6.1)

[Matt Rajca]

In addition to keeping track of the new media session, we should:

- pause the media element if it is 'active' in the current media session
- remove the element from the current media session
- release the current media session if there are no more active media elements
- set the default media session if the new media session is null
- update the 'kind' attribute to match the kind of the new media session

[Radar WebKit Bug Importer]

<rdar://problem/21613814>

[Matt Rajca]

Created attachment 255831 [details]
Patch

[Darin Adler]

Comment on attachment 255831 [details]
Patch

View in context: https://bugs.webkit.org/attachment.cgi?id=255831&action=review

> Source/WebCore/html/HTMLMediaElement.cpp:6490
> +    ASSERT_ARG(session, session);

If the function requires a non-null pointer, then the type it takes should be MediaSession&, not MediaSession*.

[Matt Rajca]

(In reply to comment #3)
> Comment on attachment 255831 [details]
> Patch
> 
> View in context:
> https://bugs.webkit.org/attachment.cgi?id=255831&action=review
> 
> > Source/WebCore/html/HTMLMediaElement.cpp:6490
> > +    ASSERT_ARG(session, session);
> 
> If the function requires a non-null pointer, then the type it takes should
> be MediaSession&, not MediaSession*.

Fixed.

[Matt Rajca]

Committed r186123: <http://trac.webkit.org/changeset/186123>