Add TimedCanvasDrawListener

third_party/WebKit/Source/modules/mediacapturefromelement/TimedCanvasDrawListener.h

Index: third_party/WebKit/Source/modules/mediacapturefromelement/TimedCanvasDrawListener.h
diff --git a/third_party/WebKit/Source/modules/mediacapturefromelement/TimedCanvasDrawListener.h b/third_party/WebKit/Source/modules/mediacapturefromelement/TimedCanvasDrawListener.h
new file mode 100644
index 0000000000000000000000000000000000000000..eb38815dd5277fe84a746c344ff0766b26802f64
--- /dev/null
+++ b/third_party/WebKit/Source/modules/mediacapturefromelement/TimedCanvasDrawListener.h
@@ -0,0 +1,33 @@
+// 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 TimedCanvasDrawListener_h
+#define TimedCanvasDrawListener_h
+
+#include "core/html/canvas/CanvasDrawListener.h"
+#include "platform/heap/Handle.h"
+#include "public/platform/WebCanvasCaptureHandler.h"
+
+namespace blink {
+
+class TimedCanvasDrawListener final : public GarbageCollectedFinalized<TimedCanvasDrawListener>, public CanvasDrawListener {
+    USING_GARBAGE_COLLECTED_MIXIN(TimedCanvasDrawListener);
+public:
+    ~TimedCanvasDrawListener();
+    static TimedCanvasDrawListener* create(const PassOwnPtr<WebCanvasCaptureHandler>&, double frameRate);
+    bool needsNewFrame() const override;
+    void sendNewFrame(const WTF::PassRefPtr<SkImage>&) override;
+
+    DEFINE_INLINE_TRACE() {}
+private:
+    TimedCanvasDrawListener(const PassOwnPtr<WebCanvasCaptureHandler>&, double frameRate);
+    void requestNewFrame();
+
+    double m_frameInterval;
+    bool m_requestFrame;
+};
+
+} // namespace blink
+
+#endif