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diff --git a/Source/WebKit2/UIProcess/WebResourceLoadStatisticsStore.h b/Source/WebKit2/UIProcess/WebResourceLoadStatisticsStore.h
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+++ b/Source/WebKit2/UIProcess/WebResourceLoadStatisticsStore.h
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+/*
+ * Copyright (C) 2016-2017 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 WebResourceLoadStatisticsStore_h
+#define WebResourceLoadStatisticsStore_h
+
+#include "APIObject.h"
+#include "Connection.h"
+#include "WebsiteDataRecord.h"
+#include <WebCore/ResourceLoadStatisticsStore.h>
+#include <wtf/Vector.h>
+#include <wtf/text/WTFString.h>
+
+namespace WTF {
+class WorkQueue;
+}
+
+namespace WebCore {
+class KeyedDecoder;
+class KeyedEncoder;
+struct ResourceLoadStatistics;
+}
+
+namespace WebKit {
+
+class WebProcessPool;
+class WebProcessProxy;
+
+class WebResourceLoadStatisticsStore : public IPC::Connection::WorkQueueMessageReceiver {
+public:
+    static Ref<WebResourceLoadStatisticsStore> create(const String&);
+    static void setNotifyPagesWhenDataRecordsWereScanned(bool);
+    static void setShouldClassifyResourcesBeforeDataRecordsRemoval(bool);
+    static void setMinimumTimeBetweeenDataRecordsRemoval(double);
+    virtual ~WebResourceLoadStatisticsStore();
+    
+    void setResourceLoadStatisticsEnabled(bool);
+    bool resourceLoadStatisticsEnabled() const;
+    void registerSharedResourceLoadObserver();
+    
+    void resourceLoadStatisticsUpdated(const Vector<WebCore::ResourceLoadStatistics>& origins);
+
+    void processWillOpenConnection(WebProcessProxy&, IPC::Connection&);
+    void processDidCloseConnection(WebProcessProxy&, IPC::Connection&);
+    void applicationWillTerminate();
+
+    void readDataFromDiskIfNeeded();
+
+    WebCore::ResourceLoadStatisticsStore& coreStore() { return m_resourceLoadStatisticsStore.get(); }
+    const WebCore::ResourceLoadStatisticsStore& coreStore() const { return m_resourceLoadStatisticsStore.get(); }
+
+private:
+    explicit WebResourceLoadStatisticsStore(const String&);
+
+    void processStatisticsAndDataRecords();
+
+    bool hasPrevalentResourceCharacteristics(const WebCore::ResourceLoadStatistics&);
+    void classifyResource(WebCore::ResourceLoadStatistics&);
+    void removeDataRecords();
+
+    String persistentStoragePath(const String& label) const;
+
+    // IPC::MessageReceiver
+    void didReceiveMessage(IPC::Connection&, IPC::Decoder&) override;
+
+    void writeEncoderToDisk(WebCore::KeyedEncoder&, const String& label) const;
+    std::unique_ptr<WebCore::KeyedDecoder> createDecoderFromDisk(const String& label) const;
+
+    Ref<WebCore::ResourceLoadStatisticsStore> m_resourceLoadStatisticsStore;
+    Ref<WTF::WorkQueue> m_statisticsQueue;
+    String m_storagePath;
+    bool m_resourceLoadStatisticsEnabled { false };
+
+    double m_lastTimeDataRecordsWereRemoved { 0 };
+    bool m_dataRecordsRemovalPending { false };
+};
+
+} // namespace WebKit
+
+#endif // WebResourceLoadStatisticsStore_h