This patch actually converts over most of the existing native CC classes
to use the participant. This is done by converting them to use
the newly generalized nsCycleCollectingAutoRefCnt instead of their usual
ref count.
This is mostly a matter of defining new macros defining AddRef() and Release()
for native CC classes with the CC ref count.
nsTimeout is left as a legacy native CC class because it is a weird class,
but hopefully eventually it too can be converted over. See bug 774874.
We currently set this for system globals and anything whose parent
chain leads to a system global. Maybe this was relevant before, but
with CPG this is just equivalent to asking whether the object is in
a system compartment. And the only place where we _check_ this bit
is immediately after checking for a system compartment, in
WrapperFactory. So AFAICT this can go away entirely.
We had problems because we'd call Destroy on a port after calling Destroy on
its streams. This patch makes the port's Destroy ControlMessage not use a stream,
instead we get the stream from the port directly. It also makes us update the
graph's mPortCount only when the port is finally destroyed; this fixes a potential
bug where the current graph could shut down when all streams are removed, before
all ports have been completely destroyed.
--HG--
extra : rebase_source : 3245fa64b79fb8a75c17190f1a4a2af6d42a5012
test_streams_element_capture_reset.html is updated to test that mozCaptureStreamUntilEnded actually stops
capturing when the stream ends. It also tests that seeking and reloading the media resource keep
feeding a mozCaptureStream stream, and feed the right amount of data.
--HG--
extra : rebase_source : 07faf20b8a99b5e7dcdfb27b3a2096fdfd570f45
Moves to a new setup where a decoder manages a single SourceMediaStream internally. Each stream
returned from mozCaptureStream(UntilEnded) is a TrackUnionStream which is fed by the
decoder's SourceMediaStream.
We want the captured streams to be blocked while the media element is not playing. We do that
by blocking any captured stream that has no SourceMediaStream feeding into it, and blocking
any SourceMediaStream while its decoder is not playing.
We arrange for the decoders's PlaybackEnded to be delayed until its SourceMediaStream has
finished according to the media stream graph. This ensures the state of captured media streams
corresponds more closely to the media element state.
--HG--
extra : rebase_source : 3324ff0e9bdce9c71a23c0f5f2032815e9046081
