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diff --git a/Source/WebKit/blackberry/Api/WebOverlayOverride.h b/Source/WebKit/blackberry/Api/WebOverlayOverride.h
new file mode 100644
index 000000000..09c9a3496
--- /dev/null
+++ b/Source/WebKit/blackberry/Api/WebOverlayOverride.h
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+/*
+ * Copyright (C) 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 WebOverlayOverride_h
+#define WebOverlayOverride_h
+
+#include "BlackBerryGlobal.h"
+
+#include <BlackBerryPlatformPrimitives.h>
+
+namespace BlackBerry {
+namespace WebKit {
+
+class WebAnimation;
+class WebOverlayPrivate;
+class WebString;
+
+/**
+ * Compositing thread only
+ *
+ * Note that the WebAnimation and WebString classes are not thread safe, but
+ * reentrant, and have to be created on the thread where they'll be used.
+ */
+class BLACKBERRY_EXPORT WebOverlayOverride {
+public:
+    // Don't use this, call WebOverlay::override() instead
+    WebOverlayOverride(WebOverlayPrivate*, bool owned);
+    ~WebOverlayOverride();
+
+    void setPosition(const Platform::FloatPoint&);
+    void setAnchorPoint(const Platform::FloatPoint&);
+    void setSize(const Platform::FloatSize&);
+    void setTransform(const Platform::TransformationMatrix&);
+    void setOpacity(float);
+
+    void addAnimation(const WebAnimation&);
+    void removeAnimation(const WebString& name);
+
+private:
+    friend class WebOverlayPrivate;
+
+    // Disable copy constructor and operator=
+    WebOverlayOverride(const WebOverlayOverride&);
+    WebOverlayOverride& operator=(const WebOverlayOverride&);
+
+    WebOverlayPrivate* d;
+    bool m_owned;
+};
+
+}
+}
+
+#endif // WebOverlayOverride_h