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diff --git a/Source/WebKit2/UIProcess/Databases/DatabaseProcessProxy.h b/Source/WebKit2/UIProcess/Databases/DatabaseProcessProxy.h
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+++ b/Source/WebKit2/UIProcess/Databases/DatabaseProcessProxy.h
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+/*
+ * Copyright (C) 2013 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 DatabaseProcessProxy_h
+#define DatabaseProcessProxy_h
+
+#if ENABLE(DATABASE_PROCESS)
+
+#include "ChildProcessProxy.h"
+#include "ProcessLauncher.h"
+#include "WebProcessProxyMessages.h"
+#include "WebsiteDataTypes.h"
+#include <wtf/Deque.h>
+
+namespace WebCore {
+class SecurityOrigin;
+class SessionID;
+}
+
+namespace WebKit {
+
+class WebProcessPool;
+
+class DatabaseProcessProxy : public ChildProcessProxy {
+public:
+    static Ref<DatabaseProcessProxy> create(WebProcessPool*);
+    ~DatabaseProcessProxy();
+
+    void fetchWebsiteData(WebCore::SessionID, WebsiteDataTypes, std::function<void (WebsiteData)> completionHandler);
+    void deleteWebsiteData(WebCore::SessionID, WebsiteDataTypes, std::chrono::system_clock::time_point modifiedSince, std::function<void ()> completionHandler);
+    void deleteWebsiteDataForOrigins(WebCore::SessionID, WebsiteDataTypes, const Vector<RefPtr<WebCore::SecurityOrigin>>& origins, std::function<void ()> completionHandler);
+
+    void getDatabaseProcessConnection(PassRefPtr<Messages::WebProcessProxy::GetDatabaseProcessConnection::DelayedReply>);
+
+private:
+    DatabaseProcessProxy(WebProcessPool*);
+
+    // ChildProcessProxy
+    virtual void getLaunchOptions(ProcessLauncher::LaunchOptions&) override;
+    virtual void processWillShutDown(IPC::Connection&) override;
+
+    // IPC::Connection::Client
+    virtual void didReceiveMessage(IPC::Connection&, IPC::MessageDecoder&) override;
+    virtual void didClose(IPC::Connection&) override;
+    virtual void didReceiveInvalidMessage(IPC::Connection&, IPC::StringReference messageReceiverName, IPC::StringReference messageName) override;
+    virtual IPC::ProcessType localProcessType() override { return IPC::ProcessType::UI; }
+    virtual IPC::ProcessType remoteProcessType() override { return IPC::ProcessType::Database; }
+
+    void didReceiveDatabaseProcessProxyMessage(IPC::Connection&, IPC::MessageDecoder&);
+
+    // Message handlers
+    void didCreateDatabaseToWebProcessConnection(const IPC::Attachment&);
+    void didFetchWebsiteData(uint64_t callbackID, const WebsiteData&);
+    void didDeleteWebsiteData(uint64_t callbackID);
+    void didDeleteWebsiteDataForOrigins(uint64_t callbackID);
+
+    // ProcessLauncher::Client
+    virtual void didFinishLaunching(ProcessLauncher*, IPC::Connection::Identifier) override;
+
+    WebProcessPool* m_processPool;
+
+    unsigned m_numPendingConnectionRequests;
+    Deque<RefPtr<Messages::WebProcessProxy::GetDatabaseProcessConnection::DelayedReply>> m_pendingConnectionReplies;
+
+    HashMap<uint64_t, std::function<void (WebsiteData)>> m_pendingFetchWebsiteDataCallbacks;
+    HashMap<uint64_t, std::function<void ()>> m_pendingDeleteWebsiteDataCallbacks;
+    HashMap<uint64_t, std::function<void ()>> m_pendingDeleteWebsiteDataForOriginsCallbacks;
+};
+
+} // namespace WebKit
+
+#endif // ENABLE(DATABASE_PROCESS)
+
+#endif // DatabaseProcessProxy_h