remove another custom refcounting base class

Change-Id: Icd8a8d79da0ada68e9ee869c3c2a7b93db5b2733

chart2/Library_chartcontroller.mk

@@ -31,6 +31,7 @@ $(eval $(call gb_Library_use_libraries,chartcontroller,\
     drawinglayer \
     editeng \
     sal \
+    salhelper \
 	i18nlangtag \
     sfx \
     sot \

chart2/source/controller/inc/ChartController.hxx

@@ -447,17 +447,7 @@ private:
 private:
     class TheModelRef;
     friend class ChartController::TheModelRef;
-    class RefCountable
-    {
-        public:
-            RefCountable();
-            virtual ~RefCountable();
-            void acquire();
-            void release();
-        private:
-            sal_Int32 m_nRefCount;
-    };
-    class TheModel : public RefCountable
+    class TheModel : public salhelper::SimpleReferenceObject
     {
         public:
             explicit TheModel( const ::com::sun::star::uno::Reference<

chart2/source/controller/main/ChartController.cxx

@@ -131,24 +131,6 @@ ChartController::~ChartController()
     stopDoubleClickWaiting();
 }
 
-ChartController::RefCountable::RefCountable() : m_nRefCount(0)
-{
-}
-
-ChartController::RefCountable::~RefCountable()
-{
-}
-void ChartController::RefCountable::acquire()
-{
-    m_nRefCount++;
-}
-void ChartController::RefCountable::release()
-{
-    m_nRefCount--;
-    if(!m_nRefCount)
-        delete this;
-}
-
 ChartController::TheModel::TheModel( const uno::Reference< frame::XModel > & xModel ) :
     m_xModel( xModel ),
     m_xCloseable( NULL ),

compilerplugins/clang/mergeclasses.results

@@ -129,7 +129,6 @@ merge cairocanvas::DeviceHelper with cairocanvas::SpriteDeviceHelper
 merge cairocanvas::Sprite with cairocanvas::CanvasCustomSpriteSpriteBase_Base
 merge canvas::ISurfaceProxy with canvas::SurfaceProxy
 merge canvas::ISurfaceProxyManager with canvas::SurfaceProxyManager
-merge chart::ChartController::RefCountable with chart::ChartController::TheModel
 merge chart::ConfigItemListener with chart::ConfigColorScheme
 merge chart::ExplicitValueProvider with chart::ChartView
 merge chart::LegendEntryProvider with chart::VSeriesPlotter