Create CanvasCaptureMediaStreamTrack in a regular MediaStream

third_party/WebKit/Source/modules/mediacapturefromelement/CanvasCaptureMediaStream.cpp

-// Copyright 2015 The Chromium Authors. All rights reserved.
-// Use of this source code is governed by a BSD-style license that can be
-// found in the LICENSE file.
-
-#include "config.h"
-#include "modules/mediacapturefromelement/CanvasCaptureMediaStream.h"
-
-#include "core/html/HTMLCanvasElement.h"
-#include "modules/mediacapturefromelement/AutoCanvasDrawListener.h"
-#include "platform/NotImplemented.h"
-#include "public/platform/WebMediaStream.h"
-#include "public/platform/WebMediaStreamSource.h"
-#include "public/platform/WebMediaStreamTrack.h"
-
-namespace blink {
-
-
-CanvasCaptureMediaStream* CanvasCaptureMediaStream::create(MediaStreamDescriptor* streamDescriptor, PassRefPtrWillBeRawPtr<HTMLCanvasElement> element)
-{
-    return new CanvasCaptureMediaStream(streamDescriptor, element);
-}
-
-CanvasCaptureMediaStream* CanvasCaptureMediaStream::create(MediaStreamDescriptor* streamDescriptor, PassRefPtrWillBeRawPtr<HTMLCanvasElement> element, const PassOwnPtr<WebCanvasCaptureHandler> handler)
-{
-    CanvasCaptureMediaStream* stream = new CanvasCaptureMediaStream(streamDescriptor, element);
-    stream->initialize(handler);
-    return stream;
-}
-
-HTMLCanvasElement* CanvasCaptureMediaStream::canvas() const
-{
-    return m_canvasElement.get();
-}
-
-void CanvasCaptureMediaStream::requestFrame()
-{
-    notImplemented();
-    return;
-}
-
-DEFINE_TRACE(CanvasCaptureMediaStream)
-{
-    visitor->trace(m_canvasElement);
-    visitor->trace(m_drawListener);
-    MediaStream::trace(visitor);
-}
-
-CanvasCaptureMediaStream::CanvasCaptureMediaStream(MediaStreamDescriptor* streamDescriptor, PassRefPtrWillBeRawPtr<HTMLCanvasElement> element)
-    : MediaStream(element->executionContext(), streamDescriptor)
-    , m_canvasElement(element) { }
-
-void CanvasCaptureMediaStream::initialize(const PassOwnPtr<WebCanvasCaptureHandler> handler)
-{
-    m_drawListener = AutoCanvasDrawListener::create(handler);
-    m_canvasElement->addListener(m_drawListener.get());
-}
-
-} // namespace blink