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diff --git a/src/core/favicon_service_factory_qt.h b/src/core/favicon_service_factory_qt.h
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+++ b/src/core/favicon_service_factory_qt.h
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+// Copyright (C) 2021 The Qt Company Ltd.
+// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only
+
+//
+//  W A R N I N G
+//  -------------
+//
+// This file is not part of the Qt API.  It exists purely as an
+// implementation detail.  This header file may change from version to
+// version without notice, or even be removed.
+//
+// We mean it.
+//
+
+#ifndef FAVICON_SERVICE_FACTORY_QT_H
+#define FAVICON_SERVICE_FACTORY_QT_H
+
+#include "qtwebenginecoreglobal_p.h"
+
+#include "base/memory/singleton.h"
+#include "base/task/cancelable_task_tracker.h"
+#include "components/favicon/core/favicon_client.h"
+#include "components/history/core/browser/history_client.h"
+#include "components/keyed_service/content/browser_context_keyed_service_factory.h"
+
+class GURL;
+
+namespace content {
+class BrowserContext;
+}
+
+namespace favicon {
+class FaviconService;
+}
+
+namespace history {
+class HistoryBackendClient;
+class HistoryService;
+}
+
+namespace QtWebEngineCore {
+
+class HistoryClientQt : public history::HistoryClient
+{
+public:
+    HistoryClientQt() { }
+    virtual ~HistoryClientQt() { }
+
+    void OnHistoryServiceCreated(history::HistoryService *history_service) override;
+    void Shutdown() override;
+    history::CanAddURLCallback GetThreadSafeCanAddURLCallback() const override;
+    void NotifyProfileError(sql::InitStatus init_status, const std::string &diagnostics) override;
+    std::unique_ptr<history::HistoryBackendClient> CreateBackendClient() override;
+    void UpdateBookmarkLastUsedTime(const base::Uuid &, base::Time) override;
+};
+
+class HistoryServiceFactoryQt : public BrowserContextKeyedServiceFactory
+{
+public:
+    static history::HistoryService *GetForBrowserContext(content::BrowserContext *context);
+    static HistoryServiceFactoryQt *GetInstance();
+
+private:
+    friend struct base::DefaultSingletonTraits<HistoryServiceFactoryQt>;
+
+    HistoryServiceFactoryQt();
+    ~HistoryServiceFactoryQt() override;
+
+    // BrowserContextKeyedServiceFactory:
+    content::BrowserContext *
+    GetBrowserContextToUse(content::BrowserContext *context) const override;
+    KeyedService *BuildServiceInstanceFor(content::BrowserContext *context) const override;
+};
+
+class FaviconClientQt : public favicon::FaviconClient
+{
+public:
+    FaviconClientQt() { }
+    virtual ~FaviconClientQt() { }
+
+    bool IsNativeApplicationURL(const GURL &url) override;
+    bool IsReaderModeURL(const GURL &url) override;
+    const GURL GetOriginalUrlFromReaderModeUrl(const GURL &url) override;
+    base::CancelableTaskTracker::TaskId
+    GetFaviconForNativeApplicationURL(const GURL &url,
+                                      const std::vector<int> &desired_sizes_in_pixel,
+                                      favicon_base::FaviconResultsCallback callback,
+                                      base::CancelableTaskTracker *tracker) override;
+};
+
+class FaviconServiceFactoryQt : public BrowserContextKeyedServiceFactory
+{
+public:
+    static favicon::FaviconService *GetForBrowserContext(content::BrowserContext *context);
+    static FaviconServiceFactoryQt *GetInstance();
+
+private:
+    friend struct base::DefaultSingletonTraits<FaviconServiceFactoryQt>;
+
+    FaviconServiceFactoryQt();
+    ~FaviconServiceFactoryQt() override;
+
+    // BrowserContextKeyedServiceFactory:
+    content::BrowserContext *
+    GetBrowserContextToUse(content::BrowserContext *context) const override;
+    KeyedService *BuildServiceInstanceFor(content::BrowserContext *context) const override;
+};
+
+} // namespace QtWebEngineCore
+
+#endif // FAVICON_SERVICE_FACTORY_QT_H