vcl: re-factor scaling to use a single fn. pointer based invocation.
vcl: re-factor scaling to use a single fn. pointer based invocation.

Change-Id: Ide61808dbfa82ce67794150f44b6bac4f3c8e302

JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core,JurassicWordExcel/core