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diff --git a/Source/WebKit2/UIProcess/WebProcessProxy.h b/Source/WebKit2/UIProcess/WebProcessProxy.h
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+/*
+ * Copyright (C) 2010, 2011 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 WebProcessProxy_h
+#define WebProcessProxy_h
+
+#include "Connection.h"
+#include "PlatformProcessIdentifier.h"
+#include "PluginInfoStore.h"
+#include "ProcessLauncher.h"
+#include "ProcessModel.h"
+#include "ResponsivenessTimer.h"
+#include "ThreadLauncher.h"
+#include "WebPageProxy.h"
+#include <WebCore/LinkHash.h>
+#include <wtf/Forward.h>
+#include <wtf/HashMap.h>
+#include <wtf/PassRefPtr.h>
+#include <wtf/RefCounted.h>
+
+namespace WebCore {
+    class KURL;
+};
+
+namespace WebKit {
+
+class WebBackForwardListItem;
+class WebContext;
+class WebPageGroup;
+struct WebNavigationDataStore;
+
+class WebProcessProxy : public RefCounted<WebProcessProxy>, CoreIPC::Connection::Client, ResponsivenessTimer::Client, ProcessLauncher::Client, ThreadLauncher::Client {
+public:
+    typedef HashMap<uint64_t, RefPtr<WebPageProxy> > WebPageProxyMap;
+    typedef WebPageProxyMap::const_iterator::Values pages_const_iterator;
+    typedef HashMap<uint64_t, RefPtr<WebFrameProxy> > WebFrameProxyMap;
+    typedef HashMap<uint64_t, RefPtr<WebBackForwardListItem> > WebBackForwardListItemMap;
+
+    static PassRefPtr<WebProcessProxy> create(WebContext*);
+    ~WebProcessProxy();
+
+    void terminate();
+
+    template<typename E, typename T> bool send(E messageID, uint64_t destinationID, const T& arguments);
+    template<typename T> bool send(const T& message, uint64_t destinationID);
+    template<typename U> bool sendSync(const U& message, const typename U::Reply& reply, uint64_t destinationID, double timeout = 1);
+    
+    CoreIPC::Connection* connection() const
+    { 
+        ASSERT(m_connection);
+        
+        return m_connection.get(); 
+    }
+
+    WebContext* context() const { return m_context; }
+
+    PlatformProcessIdentifier processIdentifier() const { return m_processLauncher->processIdentifier(); }
+
+    WebPageProxy* webPage(uint64_t pageID) const;
+    WebPageProxy* createWebPage(PageClient*, WebContext*, WebPageGroup*);
+    void addExistingWebPage(WebPageProxy*, uint64_t pageID);
+    void removeWebPage(uint64_t pageID);
+
+    pages_const_iterator pages_begin();
+    pages_const_iterator pages_end();
+    size_t numberOfPages();
+
+    WebBackForwardListItem* webBackForwardItem(uint64_t itemID) const;
+
+    ResponsivenessTimer* responsivenessTimer() { return &m_responsivenessTimer; }
+
+    bool isValid() const { return m_connection; }
+    bool isLaunching() const;
+    bool canSendMessage() const { return isValid() || isLaunching(); }
+
+    WebFrameProxy* webFrame(uint64_t) const;
+    bool canCreateFrame(uint64_t frameID) const;
+    void frameCreated(uint64_t, WebFrameProxy*);
+    void didDestroyFrame(uint64_t);
+    void disconnectFramesFromPage(WebPageProxy*); // Including main frame.
+    size_t frameCountInPage(WebPageProxy*) const; // Including main frame.
+
+    void updateTextCheckerState();
+
+    void registerNewWebBackForwardListItem(WebBackForwardListItem*);
+    
+private:
+    explicit WebProcessProxy(WebContext*);
+
+    void connect();
+
+    bool sendMessage(CoreIPC::MessageID, PassOwnPtr<CoreIPC::ArgumentEncoder>);
+
+    void addBackForwardItem(uint64_t itemID, const String& originalURLString, const String& urlString, const String& title, const CoreIPC::DataReference& backForwardData);
+
+#if ENABLE(PLUGIN_PROCESS)
+    void getPluginProcessConnection(const String& pluginPath, CoreIPC::ArgumentEncoder* reply);
+#endif
+
+    // CoreIPC::Connection::Client
+    void didReceiveMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
+    CoreIPC::SyncReplyMode didReceiveSyncMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*, CoreIPC::ArgumentEncoder*);
+    void didClose(CoreIPC::Connection*);
+    void didReceiveInvalidMessage(CoreIPC::Connection*, CoreIPC::MessageID);
+
+    // ResponsivenessTimer::Client
+    void didBecomeUnresponsive(ResponsivenessTimer*);
+    void didBecomeResponsive(ResponsivenessTimer*);
+
+    // ProcessLauncher::Client
+    virtual void didFinishLaunching(ProcessLauncher*, CoreIPC::Connection::Identifier);
+
+    // ThreadLauncher::Client
+    virtual void didFinishLaunching(ThreadLauncher*, CoreIPC::Connection::Identifier);
+
+    void didFinishLaunching(CoreIPC::Connection::Identifier);
+
+    // Implemented in generated WebProcessProxyMessageReceiver.cpp
+    void didReceiveWebProcessProxyMessage(CoreIPC::Connection*, CoreIPC::MessageID, CoreIPC::ArgumentDecoder*);
+
+    ResponsivenessTimer m_responsivenessTimer;
+    RefPtr<CoreIPC::Connection> m_connection;
+
+    Vector<CoreIPC::Connection::OutgoingMessage> m_pendingMessages;
+    RefPtr<ProcessLauncher> m_processLauncher;
+    RefPtr<ThreadLauncher> m_threadLauncher;
+
+    WebContext* m_context;
+
+    WebPageProxyMap m_pageMap;
+    WebFrameProxyMap m_frameMap;
+    WebBackForwardListItemMap m_backForwardListItemMap;
+};
+
+template<typename E, typename T>
+bool WebProcessProxy::send(E messageID, uint64_t destinationID, const T& arguments)
+{
+    OwnPtr<CoreIPC::ArgumentEncoder> argumentEncoder = CoreIPC::ArgumentEncoder::create(destinationID);
+    argumentEncoder->encode(arguments);
+
+    return sendMessage(CoreIPC::MessageID(messageID), argumentEncoder.release());
+}
+
+template<typename T>
+bool WebProcessProxy::send(const T& message, uint64_t destinationID)
+{
+    OwnPtr<CoreIPC::ArgumentEncoder> argumentEncoder = CoreIPC::ArgumentEncoder::create(destinationID);
+    argumentEncoder->encode(message);
+
+    return sendMessage(CoreIPC::MessageID(T::messageID), argumentEncoder.release());
+}
+
+template<typename U> 
+bool WebProcessProxy::sendSync(const U& message, const typename U::Reply& reply, uint64_t destinationID, double timeout)
+{
+    return m_connection->sendSync(message, reply, destinationID, timeout);
+}
+    
+} // namespace WebKit
+
+#endif // WebProcessProxy_h