Gerrit: Support cancel in query context
Gerrit: Support cancel in query context

Task-number: QTCREATORBUG-9743
Change-Id: I106fefaee19e7ce39c1a501342d11fdf8d6b0acd
Reviewed-by: Friedemann Kleint <1b9f2592239daaec4856ccc1cfb4d2d55b35fb71@theqtcompany.com>
Reviewed-by: André Hartmann <ae729fb1c7d8758f7538d0da659d7dbc2720843e@gmx.de>
Reviewed-by: Tobias Hunger <012f8d714267bccc9d4766fbeace9f175fcc70c4@theqtcompany.com>

xianian/qt-creator,kuba1/qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,Distrotech/qtcreator,danimo/qt-creator,danimo/qt-creator,Distrotech/qtcreator,Distrotech/qtcreator,kuba1/qtcreator,kuba1/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,Distrotech/qtcreator,kuba1/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,danimo/qt-creator,danimo/qt-creator,xianian/qt-creator,Distrotech/qtcreator,martyone/sailfish-qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,xianian/qt-creator,martyone/sailfish-qtcreator,danimo/qt-creator,kuba1/qtcreator,Distrotech/qtcreator,Distrotech/qtcreator,kuba1/qtcreator,xianian/qt-creator,danimo/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator,danimo/qt-creator,martyone/sailfish-qtcreator,kuba1/qtcreator,danimo/qt-creator,martyone/sailfish-qtcreator,xianian/qt-creator