Move yield mutex handling into SalInstance

After the refectoring in commit 4c93de2c921b ("merge
GenericSolarMutex and SolarMutex"), there is no more need to
prevent instantiation of comphelper::SolarMutex objects.

Since every VCL backend implements the yield mutex management in
the same way, we can move the general implementation into the
SalInstance.

While at it use std::unique_ptr for the yield mutex on Mac and
Windows platforms.

Change-Id: Ibe0610bd92b4623152ee14e7a35b52465d403720
Reviewed-on: https://gerrit.libreoffice.org/60570
Tested-by: Jenkins
Reviewed-by: Jan-Marek Glogowski <glogow@fbihome.de>

1 files changed, 1 insertions, 1 deletions

diff --git a/vcl/inc/qt5/Qt5Instance.hxx b/vcl/inc/qt5/Qt5Instance.hxx
index e68e55e8a5ef..a2ceae0139e2 100644
--- a/vcl/inc/qt5/Qt5Instance.hxx
+++ b/vcl/inc/qt5/Qt5Instance.hxx
@@ -54,7 +54,7 @@ Q_SIGNALS:
     bool ImplYieldSignal(bool bWait, bool bHandleAllCurrentEvents);
 
 public:
-    explicit Qt5Instance(std::unique_ptr<SalYieldMutex> pMutex, bool bUseCairo = false);
+    explicit Qt5Instance(bool bUseCairo = false);
     virtual ~Qt5Instance() override;
 
     virtual SalFrame* CreateFrame(SalFrame* pParent, SalFrameStyleFlags nStyle) override;