Flaky test: tst_QGraphicsView::update2

https://testresults.qt.io/coin/integration/qt/qtbase/tasks/1540533886

https://testresults.qt.io/logs/qt/qtbase/c92299efe23fc05c823a49021c279db5f17bd642/LinuxopenSUSE_42_3x86_64LinuxopenSUSE_42_3x86_64GCCqtci-linux-openSUSE-42.3-x86_64-ec37feDeveloperBuild_NoPch/2a48a3b7dcb9652b1532a3ad14de7580b5b9b1ee/test_1540533921/log.txt.gz

addition to touch
agent:2018/10/15 20:27:40 build.go:193: PASS : tst_QGraphicsView::update2(pen width: 0.0, antialiasing: false, changed)
agent:2018/10/15 20:27:40 build.go:193: QDEBUG : tst_QGraphicsView::update2(pen width: 1.5, antialiasing: true, changed) [ 0.526 D] qt.qpa.input QXcbConnection::xi2Select - XInput 2.2: Selecting press/release/motion events in addition to touch
agent:2018/10/15 20:27:40 build.go:193: FAIL! : tst_QGraphicsView::update2(pen width: 1.5, antialiasing: true, changed) 'QTest::qWaitForWindowActive(&view)' returned FALSE. ()
agent:2018/10/15 20:27:40 build.go:193: Loc: [tst_qgraphicsview.cpp(4151)]
agent:2018/10/15 20:27:40 build.go:193: QDEBUG : tst_QGraphicsView::update2(pen width: 2.0, antialiasing: false, changed) [ 0.569 D] qt.qpa.input QXcbConnection::xi2Select - XInput 2.2: Selecting press/release/motion events in addition to touch
agent:2018/10/15 20:27:40 build.go:193: PASS : tst_QGraphicsView::update2(pen width: 2.0, antialiasing: false, changed)
agent:2018/10/15 20:27:40 build.go:193: QDEBUG : tst_QGraphicsView::update2(pen width: 3.0, antialiasing: true, changed) [ 0.607 D] qt.qpa.input QXcbConnection::xi2Select - XInput 2.2: Selecting press/release/motion events in addition to touch