replaces one macro by a constant in the C++ style

Change-Id: I4b4fc85024d64f94197bd0fd25ed8ba0ada004ba
Signed-off-by: Adrien Ollier <adr.ollier@hotmail.fr>
Reviewed-on: https://gerrit.libreoffice.org/71807
Tested-by: Jenkins
Reviewed-by: Tomaž Vajngerl <quikee@gmail.com>

vcl/source/animate/Animation.cxx

@@ -31,8 +31,6 @@
 
 #include <impanmvw.hxx>
 
-#define MIN_TIMEOUT 2
-
 sal_uLong Animation::mnAnimCount = 0;
 
 Animation::Animation()
@@ -268,9 +266,14 @@ void Animation::Draw(OutputDevice* pOut, const Point& rDestPt, const Size& rDest
     }
 }
 
+namespace
+{
+constexpr sal_uLong constMinTimeout = 2;
+}
+
 void Animation::ImplRestartTimer(sal_uLong nTimeout)
 {
-    maTimer.SetTimeout(std::max(nTimeout, static_cast<sal_uLong>(MIN_TIMEOUT)) * 10);
+    maTimer.SetTimeout(std::max(nTimeout, constMinTimeout) * 10);
     maTimer.Start();
 }