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diff --git a/Source/WebKit/blackberry/Api/WebPageCompositor_p.h b/Source/WebKit/blackberry/Api/WebPageCompositor_p.h
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+/*
+ * Copyright (C) 2010, 2011, 2012 Research In Motion Limited. All rights reserved.
+ *
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser 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
+ * Lesser General Public License for more details.
+ *
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef WebPageCompositor_p_h
+#define WebPageCompositor_p_h
+
+#if USE(ACCELERATED_COMPOSITING)
+
+#include "LayerCompositingThread.h"
+#include "LayerRenderer.h"
+
+#include <BlackBerryPlatformAnimation.h>
+#include <BlackBerryPlatformGLES2Context.h>
+#include <wtf/OwnPtr.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RefPtr.h>
+
+namespace WebCore {
+class LayerWebKitThread;
+};
+
+namespace BlackBerry {
+namespace WebKit {
+
+class WebPageCompositorClient;
+class WebPagePrivate;
+
+// This class may only be used on the compositing thread. So it does not need to be threadsaferefcounted.
+class WebPageCompositorPrivate : public RefCounted<WebPageCompositorPrivate>, public Platform::AnimationFrameRateClient {
+public:
+    static PassRefPtr<WebPageCompositorPrivate> create(WebPagePrivate* page, WebPageCompositorClient* client)
+    {
+        return adoptRef(new WebPageCompositorPrivate(page, client));
+    }
+
+    ~WebPageCompositorPrivate();
+
+    bool hardwareCompositing() const;
+
+    Platform::Graphics::GLES2Context* context() const { return m_context; }
+    void setContext(Platform::Graphics::GLES2Context*);
+
+    WebCore::LayerCompositingThread* rootLayer() const { return m_rootLayer.get(); }
+    void setRootLayer(WebCore::LayerCompositingThread*);
+
+    void commit(WebCore::LayerWebKitThread* rootLayerProxy);
+
+    // This is mapped from the public API, thus takes transformed contents
+    void render(const WebCore::IntRect& dstRect, const WebCore::IntRect& transformedContents);
+
+    // Returns true if the WebPageCompositor draws the root layer, false if the BackingStore draws the root layer
+    bool drawsRootLayer() const;
+    void setDrawsRootLayer(bool drawsRootLayer) { m_drawsRootLayer = drawsRootLayer; }
+
+    // Render everything but the root layer, or everything if drawsRootLayer() is true.
+    bool drawLayers(const WebCore::IntRect& dstRect, const WebCore::FloatRect& contents);
+
+    WebCore::IntRect layoutRectForCompositing() const { return m_layoutRectForCompositing; }
+    void setLayoutRectForCompositing(const WebCore::IntRect& rect) { m_layoutRectForCompositing = rect; }
+
+    WebCore::IntSize contentsSizeForCompositing() const { return m_contentsSizeForCompositing; }
+    void setContentsSizeForCompositing(const WebCore::IntSize& size) { m_contentsSizeForCompositing = size; }
+
+    WebCore::LayerRenderingResults lastCompositingResults() const { return m_lastCompositingResults; }
+    void setLastCompositingResults(const WebCore::LayerRenderingResults& results) { m_lastCompositingResults = results; }
+
+    void releaseLayerResources();
+
+    WebPagePrivate* page() const { return m_webPage; }
+    WebPageCompositorClient* client() const { return m_client; }
+    void compositorDestroyed();
+
+protected:
+    WebPageCompositorPrivate(WebPagePrivate*, WebPageCompositorClient*);
+
+private:
+    void animationFrameChanged();
+
+    WebPageCompositorClient* m_client;
+    WebPagePrivate* m_webPage;
+    Platform::Graphics::GLES2Context* m_context;
+    OwnPtr<WebCore::LayerRenderer> m_layerRenderer;
+    RefPtr<WebCore::LayerCompositingThread> m_rootLayer;
+    WebCore::IntRect m_layoutRectForCompositing;
+    WebCore::IntSize m_contentsSizeForCompositing;
+    WebCore::LayerRenderingResults m_lastCompositingResults;
+    bool m_drawsRootLayer;
+};
+
+} // namespace WebKit
+} // namespace BlackBerry
+
+#endif // USE(ACCELERATED_COMPOSITING)
+
+#endif // WebPageCompositor_p_h