/usr/include/x86_64-linux-gnu/ is in qtwebengine5-private-dev 5.9.5+dfsg-0ubuntu2.
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/usr/include/x86_64-linux-gnu/qt5/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginecertificateerror_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginecontextmenurequest_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginedialogrequests_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginedownloaditem_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginedownloaditem_p_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginefaviconprovider_p_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginehistory_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginehistory_p_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebengineloadrequest_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginenavigationrequest_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginenewviewrequest_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebengineprofile_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginescript_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginesettings_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginesingleton_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebenginetestsupport_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebengineview_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qquickwebengineview_p_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngine/5.9.5/QtWebEngine/private/qtwebengineglobal_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/QtWebEngineCore/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/QtWebEngineCore/private/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/QtWebEngineCore/private/qtwebenginecoreglobal_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/QtWebEngineCore/private/qwebenginebrowsercontext_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/QtWebEngineCore/private/qwebenginecallback_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/QtWebEngineCore/private/qwebenginecookiestore_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineCore/5.9.5/QtWebEngineCore/private/qwebengineurlrequestinfo_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/private/
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/private/qwebenginedownloaditem_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/private/qwebenginehistory_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/private/qwebenginepage_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/private/qwebengineprofile_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/private/qwebenginescriptcollection_p.h
/usr/include/x86_64-linux-gnu/qt5/QtWebEngineWidgets/5.9.5/QtWebEngineWidgets/private/qwebengineview_p.h