presumably Kernel is leaking

Change-Id: I3b6815b3ca7ec94021be9229ae320b86e86f5418
Reviewed-on: https://gerrit.libreoffice.org/53020Tested-by: Jenkins <ci@libreoffice.org>
Reviewed-by: Caolán McNamara <caolanm@redhat.com>
Tested-by: Caolán McNamara <caolanm@redhat.com>

vcl/inc/BitmapScaleConvolutionFilter.hxx

@@ -30,7 +30,7 @@ class VCL_DLLPUBLIC BitmapScaleConvolutionFilter : public BitmapFilter
 {
 protected:
     BitmapScaleConvolutionFilter(const double& rScaleX, const double& rScaleY, Kernel* pKernel)
-        : mpKernel(pKernel)
+        : mxKernel(pKernel)
         , mrScaleX(rScaleX)
         , mrScaleY(rScaleY)
     {
@@ -39,7 +39,7 @@ protected:
     virtual BitmapEx execute(BitmapEx const& rBitmap) override;
 
 private:
-    Kernel* mpKernel;
+    std::unique_ptr<Kernel> mxKernel;
     double mrScaleX;
     double mrScaleY;
 };

vcl/source/bitmap/BitmapScaleConvolutionFilter.cxx

@@ -377,7 +377,7 @@ BitmapEx BitmapScaleConvolutionFilter::execute(BitmapEx const& rBitmapEx)
     bool bRetval = false;
     Bitmap aBitmap(rBitmapEx.GetBitmap());
 
-    bRetval = ImplScaleConvolution(aBitmap, mrScaleX, mrScaleY, *mpKernel);
+    bRetval = ImplScaleConvolution(aBitmap, mrScaleX, mrScaleY, *mxKernel);
 
     if (bRetval)
         return BitmapEx(aBitmap);