CRC is an integer type -> mnChecksum.

Change-Id: I9e4d36105a59c5f81677d8e062106dae6f709464

vcl/inc/salbmp.hxx

@@ -71,7 +71,7 @@ public:
     {
         updateChecksum();
         assert(mbChecksumValid);
-        rChecksum = maChecksum;
+        rChecksum = mnChecksum;
         return mbChecksumValid;
     }
 
@@ -81,8 +81,8 @@ public:
     }
 
 protected:
-    ChecksumType           maChecksum;
-    bool               mbChecksumValid;
+    ChecksumType mnChecksum;
+    bool         mbChecksumValid;
 
 protected:
     virtual void updateChecksum() const
@@ -97,7 +97,7 @@ protected:
         {
             nCrc = vcl_get_checksum(0, pBuf->mpBits, pBuf->mnScanlineSize * pBuf->mnHeight);
             pThis->ReleaseBuffer(pBuf, BITMAP_READ_ACCESS);
-            pThis->maChecksum = nCrc;
+            pThis->mnChecksum = nCrc;
             pThis->mbChecksumValid = true;
         }
         else

vcl/opengl/salbmp.cxx

@@ -594,7 +594,7 @@ void OpenGLSalBitmap::updateChecksum() const
         pThis->CreateTexture();
     }
 
-    pThis->mbChecksumValid = calcChecksumGL(pThis->maTexture, pThis->maChecksum);
+    pThis->mbChecksumValid = calcChecksumGL(pThis->maTexture, pThis->mnChecksum);
 }
 
 OpenGLContext* OpenGLSalBitmap::GetBitmapContext()