f412f2b5 refactored the platform tool set retrieval, but made the
call too early to choose the right tool set on Windows Phone. This
fixes the call so that it does not depend on the WinPhone member variable,
and also makes it forward-compatible with Windows Phone 8.1.
Task-number: QTBUG-38516
Change-Id: Ide91563f5c7f909c4d1a258adc29af6c94595dc9
Reviewed-by: Oliver Wolff <oliver.wolff@digia.com>
Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
c1625ef823