Some missing SolarMutexGuard around VclPtr acquire/release

At least OutputDevice::acquire/release use a plain unguarded int and ++, --, so
apparently rely on the SolarMutex being locked whenever they are called.  Fixed
those places that caused "make check" to fail for me when temporarily adding
DBG_TESTSOLARMUTEX() to OutputDevice::acquire/release.  (A recurring pattern is
that a class fails to ensure the SolarMutex is locked around the destruction of
non-null VclPtr members.)

Change-Id: I77cba6f3908f2de1b516ce28f1c3c43b3f57a9c5

1 files changed, 2 insertions, 0 deletions

diff --git a/accessibility/source/extended/listboxaccessible.cxx b/accessibility/source/extended/listboxaccessible.cxx
index e02a1d638225..e7e428c376f3 100644
--- a/accessibility/source/extended/listboxaccessible.cxx
+++ b/accessibility/source/extended/listboxaccessible.cxx
@@ -19,6 +19,7 @@
 
 #include <accessibility/extended/listboxaccessible.hxx>
 #include <svtools/treelistbox.hxx>
+#include <vcl/svapp.hxx>
 
 namespace accessibility
 {
@@ -55,6 +56,7 @@ namespace accessibility
 
     void ListBoxAccessibleBase::disposing()
     {
+        SolarMutexGuard g;
         if ( m_pWindow )
             m_pWindow->RemoveEventListener( LINK( this, ListBoxAccessibleBase, WindowEventListener ) );
         m_pWindow = NULL;