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diff --git a/Source/WebKit2/WebProcess/Plugins/PluginProxy.h b/Source/WebKit2/WebProcess/Plugins/PluginProxy.h
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+/*
+ * Copyright (C) 2010 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 PluginProxy_h
+#define PluginProxy_h
+
+#if ENABLE(PLUGIN_PROCESS)
+
+#include "Connection.h"
+#include "Plugin.h"
+
+#if PLATFORM(MAC)
+#include <wtf/RetainPtr.h>
+#ifdef __OBJC__
+@class CALayer;
+#else
+class CALayer;
+#endif
+#endif
+
+namespace WebCore {
+    class HTTPHeaderMap;
+}
+
+namespace WebKit {
+
+class ShareableBitmap;
+class NPVariantData;
+class PluginProcessConnection;
+
+class PluginProxy : public Plugin {
+public:
+    static PassRefPtr<PluginProxy> create(const String& pluginPath);
+    ~PluginProxy();
+
+    uint64_t pluginInstanceID() const { return m_pluginInstanceID; }
+    void pluginProcessCrashed();
+
+    void didReceivePluginProxyMessage(CoreIPC::Connection*, CoreIPC::MessageID messageID, CoreIPC::ArgumentDecoder* arguments);
+    CoreIPC::SyncReplyMode didReceiveSyncPluginProxyMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, CoreIPC::ArgumentEncoder*);
+
+private:
+    explicit PluginProxy(const String& pluginPath);
+
+    // Plugin
+    virtual bool initialize(PluginController*, const Parameters&);
+    virtual void destroy();
+    virtual void paint(WebCore::GraphicsContext*, const WebCore::IntRect& dirtyRect);
+#if PLATFORM(MAC)
+    virtual PlatformLayer* pluginLayer();
+#endif
+    virtual void geometryDidChange(const WebCore::IntRect& frameRect, const WebCore::IntRect& clipRect);
+    virtual void frameDidFinishLoading(uint64_t requestID);
+    virtual void frameDidFail(uint64_t requestID, bool wasCancelled);
+    virtual void didEvaluateJavaScript(uint64_t requestID, const WTF::String& requestURLString, const WTF::String& result);
+    virtual void streamDidReceiveResponse(uint64_t streamID, const WebCore::KURL& responseURL, uint32_t streamLength, uint32_t lastModifiedTime, const WTF::String& mimeType, const WTF::String& headers);
+    virtual void streamDidReceiveData(uint64_t streamID, const char* bytes, int length);
+    virtual void streamDidFinishLoading(uint64_t streamID);
+    virtual void streamDidFail(uint64_t streamID, bool wasCancelled);
+    virtual void manualStreamDidReceiveResponse(const WebCore::KURL& responseURL, uint32_t streamLength, uint32_t lastModifiedTime, const WTF::String& mimeType, const WTF::String& headers);
+    virtual void manualStreamDidReceiveData(const char* bytes, int length);
+    virtual void manualStreamDidFinishLoading();
+    virtual void manualStreamDidFail(bool wasCancelled);
+    
+    virtual bool handleMouseEvent(const WebMouseEvent&);
+    virtual bool handleWheelEvent(const WebWheelEvent&);
+    virtual bool handleMouseEnterEvent(const WebMouseEvent&);
+    virtual bool handleMouseLeaveEvent(const WebMouseEvent&);
+    virtual bool handleKeyboardEvent(const WebKeyboardEvent&);
+    virtual void setFocus(bool);
+    virtual NPObject* pluginScriptableNPObject();
+#if PLATFORM(MAC)
+    virtual void windowFocusChanged(bool);
+    virtual void windowAndViewFramesChanged(const WebCore::IntRect& windowFrameInScreenCoordinates, const WebCore::IntRect& viewFrameInWindowCoordinates);
+    virtual void windowVisibilityChanged(bool);
+    virtual uint64_t pluginComplexTextInputIdentifier() const;
+    virtual void sendComplexTextInput(const String& textInput);
+#endif
+
+    virtual void privateBrowsingStateChanged(bool);
+
+    virtual PluginController* controller();
+
+    bool needsBackingStore() const;
+
+    // Message handlers.
+    void loadURL(uint64_t requestID, const String& method, const String& urlString, const String& target, const WebCore::HTTPHeaderMap& headerFields, const Vector<uint8_t>& httpBody, bool allowPopups);
+    void update(const WebCore::IntRect& paintedRect);
+    void proxiesForURL(const String& urlString, String& proxyString);
+    void cookiesForURL(const String& urlString, String& cookieString);
+    void setCookiesForURL(const String& urlString, const String& cookieString);
+    void getWindowScriptNPObject(uint64_t& windowScriptNPObjectID);
+    void getPluginElementNPObject(uint64_t& pluginElementNPObjectID);
+    void evaluate(const NPVariantData& npObjectAsVariantData, const String& scriptString, bool allowPopups, bool& returnValue, NPVariantData& resultData);
+    void cancelStreamLoad(uint64_t streamID);
+    void cancelManualStreamLoad();
+    void setStatusbarText(const String& statusbarText);
+#if PLATFORM(MAC)
+    void setComplexTextInputEnabled(bool);
+#endif
+
+    String m_pluginPath;
+
+    RefPtr<PluginProcessConnection> m_connection;
+    uint64_t m_pluginInstanceID;
+
+    PluginController* m_pluginController;
+
+    // The plug-in rect in window coordinates.
+    WebCore::IntRect m_frameRect;
+
+    // This is the backing store that we paint when we're told to paint.
+    RefPtr<ShareableBitmap> m_backingStore;
+
+    // This is the shared memory backing store that the plug-in paints into. When the plug-in tells us
+    // that it's painted something in it, we'll blit from it to our own backing store.
+    RefPtr<ShareableBitmap> m_pluginBackingStore;
+    
+    // Whether all of the plug-in backing store contains valid data.
+    bool m_pluginBackingStoreContainsValidData;
+
+    bool m_isStarted;
+
+    // Whether we're called invalidate in response to an update call, and are now waiting for a paint call.
+    bool m_waitingForPaintInResponseToUpdate;
+
+    // The client ID for the CA layer in the plug-in process. Will be 0 if the plug-in is not a CA plug-in.
+    uint32_t m_remoteLayerClientID;
+
+#if PLATFORM(MAC)
+    RetainPtr<CALayer> m_pluginLayer;
+#endif
+};
+
+} // namespace WebKit
+
+#endif // ENABLE(PLUGIN_PROCESS)
+
+#endif // PluginProxy_h