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diff --git a/Source/WebKit2/WebProcess/Plugins/PDF/PDFPluginAnnotation.h b/Source/WebKit2/WebProcess/Plugins/PDF/PDFPluginAnnotation.h
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+++ b/Source/WebKit2/WebProcess/Plugins/PDF/PDFPluginAnnotation.h
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+/*
+ * Copyright (C) 2012 Apple Inc. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ *
+ * THIS SOFTWARE IS PROVIDED BY APPLE INC. AND ITS CONTRIBUTORS ``AS IS''
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR ITS CONTRIBUTORS
+ * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ * THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef PDFPluginAnnotation_h
+#define PDFPluginAnnotation_h
+
+#if ENABLE(PDFKIT_PLUGIN)
+
+#include <WebCore/EventListener.h>
+#include <wtf/RefCounted.h>
+#include <wtf/RetainPtr.h>
+
+namespace WebCore {
+class Document;
+class Element;
+}
+
+OBJC_CLASS PDFAnnotation;
+OBJC_CLASS PDFLayerController;
+
+namespace WebKit {
+
+class PDFPlugin;
+
+class PDFPluginAnnotation : public RefCounted<PDFPluginAnnotation> {
+public:
+    static PassRefPtr<PDFPluginAnnotation> create(PDFAnnotation *, PDFLayerController *, PDFPlugin*);
+    virtual ~PDFPluginAnnotation();
+
+    WebCore::Element* element() const { return m_element.get(); }
+    PDFAnnotation *annotation() const { return m_annotation.get(); }
+    PDFPlugin* plugin() const { return m_plugin; }
+
+    virtual void updateGeometry();
+    virtual void commit();
+
+    void attach(WebCore::Element*);
+
+protected:
+    PDFPluginAnnotation(PDFAnnotation *annotation, PDFLayerController *pdfLayerController, PDFPlugin* plugin)
+        : m_parent(0)
+        , m_annotation(annotation)
+        , m_eventListener(PDFPluginAnnotationEventListener::create(this))
+        , m_pdfLayerController(pdfLayerController)
+        , m_plugin(plugin)
+    {
+    }
+
+    WebCore::Element* parent() const { return m_parent; }
+    PDFLayerController *pdfLayerController() const { return m_pdfLayerController; }
+    WebCore::EventListener* eventListener() const { return m_eventListener.get(); }
+
+    virtual bool handleEvent(WebCore::Event*);
+
+private:
+    virtual PassRefPtr<WebCore::Element> createAnnotationElement() = 0;
+
+    class PDFPluginAnnotationEventListener : public WebCore::EventListener {
+    public:
+        static Ref<PDFPluginAnnotationEventListener> create(PDFPluginAnnotation* annotation)
+        {
+            return adoptRef(*new PDFPluginAnnotationEventListener(annotation));
+        }
+
+        bool operator==(const EventListener& listener) const override { return this == &listener; }
+
+        void setAnnotation(PDFPluginAnnotation* annotation) { m_annotation = annotation; }
+
+    private:
+
+        PDFPluginAnnotationEventListener(PDFPluginAnnotation* annotation)
+            : WebCore::EventListener(WebCore::EventListener::CPPEventListenerType)
+            , m_annotation(annotation)
+        {
+        }
+
+        void handleEvent(WebCore::ScriptExecutionContext*, WebCore::Event*) override;
+
+        PDFPluginAnnotation* m_annotation;
+    };
+
+    WebCore::Element* m_parent;
+
+    RefPtr<WebCore::Element> m_element;
+    RetainPtr<PDFAnnotation> m_annotation;
+
+    RefPtr<PDFPluginAnnotationEventListener> m_eventListener;
+
+    PDFLayerController *m_pdfLayerController;
+    PDFPlugin* m_plugin;
+};
+
+} // namespace WebKit
+
+#endif // ENABLE(PDFKIT_PLUGIN)
+
+#endif // PDFPluginAnnotation_h