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diff --git a/Source/WebKit2/WebProcess/WebPage/CoordinatedGraphics/CoordinatedLayerTreeHost.h b/Source/WebKit2/WebProcess/WebPage/CoordinatedGraphics/CoordinatedLayerTreeHost.h
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+++ b/Source/WebKit2/WebProcess/WebPage/CoordinatedGraphics/CoordinatedLayerTreeHost.h
@@ -0,0 +1,92 @@
+/*
+    Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies)
+    Copyright (C) 2013 Company 100, Inc.
+
+    This library is free software; you can redistribute it and/or
+    modify it under the terms of the GNU Library General Public
+    License as published by the Free Software Foundation; either
+    version 2 of the License, or (at your option) any later version.
+
+    This library is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+    Library General Public License for more details.
+
+    You should have received a copy of the GNU Library General Public License
+    along with this library; see the file COPYING.LIB.  If not, write to
+    the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
+    Boston, MA 02110-1301, USA.
+*/
+
+#ifndef CoordinatedLayerTreeHost_h
+#define CoordinatedLayerTreeHost_h
+
+#if USE(COORDINATED_GRAPHICS)
+
+#include "CompositingCoordinator.h"
+#include "LayerTreeHost.h"
+#include <wtf/RunLoop.h>
+
+namespace WebCore {
+class CoordinatedSurface;
+class GraphicsLayerFactory;
+}
+
+namespace WebKit {
+
+class WebPage;
+
+class CoordinatedLayerTreeHost : public LayerTreeHost, public CompositingCoordinator::Client
+{
+public:
+    static Ref<CoordinatedLayerTreeHost> create(WebPage&);
+    virtual ~CoordinatedLayerTreeHost();
+
+protected:
+    explicit CoordinatedLayerTreeHost(WebPage&);
+
+    void scheduleLayerFlush() override;
+    void cancelPendingLayerFlush() override;
+    void setRootCompositingLayer(WebCore::GraphicsLayer*) override;
+    void invalidate() override;
+
+    void forceRepaint() override;
+    bool forceRepaintAsync(uint64_t callbackID) override;
+    void sizeDidChange(const WebCore::IntSize& newSize) override;
+
+    void deviceOrPageScaleFactorChanged() override;
+    void pageBackgroundTransparencyChanged() override;
+
+    void setVisibleContentsRect(const WebCore::FloatRect&, const WebCore::FloatPoint&);
+    void renderNextFrame();
+    void commitScrollOffset(uint32_t layerID, const WebCore::IntSize& offset);
+
+    WebCore::GraphicsLayerFactory* graphicsLayerFactory() override;
+
+    void scheduleAnimation() override;
+
+    void setViewOverlayRootLayer(WebCore::GraphicsLayer*) override;
+
+    // CompositingCoordinator::Client
+    void didFlushRootLayer(const WebCore::FloatRect& visibleContentRect) override;
+    void notifyFlushRequired() override { scheduleLayerFlush(); };
+    void commitSceneState(const WebCore::CoordinatedGraphicsState&) override;
+    void paintLayerContents(const WebCore::GraphicsLayer*, WebCore::GraphicsContext&, const WebCore::IntRect& clipRect) override;
+
+private:
+    void layerFlushTimerFired();
+
+    static RefPtr<WebCore::CoordinatedSurface> createCoordinatedSurface(const WebCore::IntSize&, WebCore::CoordinatedSurface::Flags);
+
+    CompositingCoordinator m_coordinator;
+    bool m_isWaitingForRenderer { true };
+    bool m_scheduledWhileWaitingForRenderer { false };
+    uint64_t m_forceRepaintAsyncCallbackID { 0 };
+    RunLoop::Timer<CoordinatedLayerTreeHost> m_layerFlushTimer;
+};
+
+} // namespace WebKit
+
+#endif // USE(COORDINATED_GRAPHICS)
+
+#endif // CoordinatedLayerTreeHost_h