Add basic implementation for MediaStreamAudioDestinationNode
https://bugs.webkit.org/show_bug.cgi?id=101815

Reviewed by Chris Rogers.

Source/Platform:

Adds the consumer interface and related functionality to WebMediaStreamSource.

* chromium/public/WebAudioDestinationConsumer.h: Added.
(WebKit):
(WebAudioDestinationConsumer):
(WebKit::WebAudioDestinationConsumer::~WebAudioDestinationConsumer):
* chromium/public/WebMediaStreamSource.h:
(WebKit):
(WebMediaStreamSource):

Source/WebCore:

Implements an audio destination node which has a MediaStream.
This can be added to a PeerConnection with peerConnection.addStream().
Please see use case (3):
https://dvcs.w3.org/hg/audio/raw-file/tip/webaudio/webrtc-integration.html

Test: webaudio/mediastreamaudiodestinationnode.html

* Modules/webaudio/AudioContext.cpp:
(WebCore):
(WebCore::AudioContext::createMediaStreamDestination):
* Modules/webaudio/AudioContext.h:
(WebCore):
(AudioContext):
* Modules/webaudio/AudioContext.idl:
* Modules/webaudio/AudioNode.h:
* Modules/webaudio/MediaStreamAudioDestinationNode.cpp: Added.
(WebCore):
(WebCore::MediaStreamAudioDestinationNode::create):
(WebCore::MediaStreamAudioDestinationNode::MediaStreamAudioDestinationNode):
(WebCore::MediaStreamAudioDestinationNode::mediaStreamSource):
(WebCore::MediaStreamAudioDestinationNode::~MediaStreamAudioDestinationNode):
(WebCore::MediaStreamAudioDestinationNode::process):
(WebCore::MediaStreamAudioDestinationNode::reset):
* Modules/webaudio/MediaStreamAudioDestinationNode.h: Added.
(WebCore):
(MediaStreamAudioDestinationNode):
(WebCore::MediaStreamAudioDestinationNode::stream):
* Modules/webaudio/MediaStreamAudioDestinationNode.idl: Added.
* WebCore.gypi:
* platform/audio/AudioDestinationConsumer.h: Copied from Source/WebCore/platform/mediastream/MediaStreamSource.cpp.
(WebCore):
(AudioDestinationConsumer):
(WebCore::AudioDestinationConsumer::~AudioDestinationConsumer):
* platform/chromium/support/WebMediaStreamSource.cpp:
(WebKit::WebMediaStreamSource::extraData):
(WebKit::WebMediaStreamSource::setExtraData):
(WebKit::WebMediaStreamSource::requiresAudioConsumer):
(WebKit):
(ConsumerWrapper):
(WebKit::ConsumerWrapper::create):
(WebKit::ConsumerWrapper::consumer):
(WebKit::ConsumerWrapper::ConsumerWrapper):
(WebKit::ConsumerWrapper::consumeAudio):
(WebKit::WebMediaStreamSource::addAudioConsumer):
(WebKit::WebMediaStreamSource::removeAudioConsumer):
* platform/mediastream/MediaStreamSource.cpp:
(WebCore::MediaStreamSource::create):
(WebCore::MediaStreamSource::MediaStreamSource):
(WebCore::MediaStreamSource::addAudioConsumer):
(WebCore):
(WebCore::MediaStreamSource::removeAudioConsumer):
(WebCore::MediaStreamSource::consumeAudio):
* platform/mediastream/MediaStreamSource.h:
(WebCore):
(MediaStreamSource):
(WebCore::MediaStreamSource::requiresAudioConsumer):
(WebCore::MediaStreamSource::audioConsumers):

Tools:

Adds a bit of code that exercises the WebKit API.

* DumpRenderTree/chromium/MockWebMediaStreamCenter.cpp:
(MockWebMediaStreamSourceConsumer):
(MockWebMediaStreamSourceConsumer::~MockWebMediaStreamSourceConsumer):
(MockWebMediaStreamCenter::didCreateMediaStream):

LayoutTests:

* webaudio/mediastreamaudiodestinationnode-expected.txt: Added.
* webaudio/mediastreamaudiodestinationnode.html: Added.


git-svn-id: https://svn.webkit.org/repository/webkit/trunk/Source/Platform/chromium/public@135985 268f45cc-cd09-0410-ab3c-d52691b4dbfc