Fix deps: use UMemory as base class for it's new().

diff --git a/icu4c/source/i18n/unitsdata.h b/icu4c/source/i18n/unitsdata.h
index 6c6154ae8a485c1099308781f48ae057bb04a45e..5f4306dc012b180fa12729986d3b7ef258b5f7a5 100644 (file)
--- a/icu4c/source/i18n/unitsdata.h
+++ b/icu4c/source/i18n/unitsdata.h
@@ -23,7 +23,7 @@ U_NAMESPACE_BEGIN
  * precision conversion - going from feet to inches should cancel out the
  * `ft_to_m` constant.
  */
-class U_I18N_API ConversionRateInfo {
+class U_I18N_API ConversionRateInfo : public UMemory {
   public:
     ConversionRateInfo(){};
     ConversionRateInfo(StringPiece sourceUnit, StringPiece baseUnit, StringPiece factor,