Basic use implementation for MediaStream from Canvas: captureStream()

third_party/WebKit/Source/core/html/canvas/CanvasDrawListener.h

Index: third_party/WebKit/Source/core/html/canvas/CanvasDrawListener.h
diff --git a/third_party/WebKit/Source/core/html/canvas/CanvasDrawListener.h b/third_party/WebKit/Source/core/html/canvas/CanvasDrawListener.h
new file mode 100644
index 0000000000000000000000000000000000000000..0ed405c71a7cc00e6a1700ef4eff2d6b11a06c30
--- /dev/null
+++ b/third_party/WebKit/Source/core/html/canvas/CanvasDrawListener.h
@@ -0,0 +1,24 @@
+// 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.
+
+#ifndef CanvasDrawListener_h
+#define CanvasDrawListener_h
+
+#include "core/CoreExport.h"
+#include "platform/heap/Handle.h"
+#include "third_party/skia/include/core/SkImage.h"
+#include "wtf/PassRefPtr.h"
+
+namespace blink {
+
+class CORE_EXPORT CanvasDrawListener : public GarbageCollectedMixin {
+public:
+    virtual ~CanvasDrawListener() {}
+    virtual bool needsNewFrameCapture() const = 0;

[esprehn, 2015/12/03 18:47:34]

needsNewFrame()

[emircan, 2015/12/04 03:23:25]

Done.

+    virtual void sendNewFrame(const WTF::PassRefPtr<SkImage>&) = 0;
+};
+
+} // namespace blink
+
+#endif