Bug fix - rem & ch in MQs/sizes treated as unknown units

Source/core/css/CSSPrimitiveValue.cpp

Index: Source/core/css/CSSPrimitiveValue.cpp
diff --git a/Source/core/css/CSSPrimitiveValue.cpp b/Source/core/css/CSSPrimitiveValue.cpp
index 6a9138e357af479f852bc40b66fa96d38ac229ab..2a17e382c7b94447da6c4ba04c0b9b262714e911 100644
--- a/Source/core/css/CSSPrimitiveValue.cpp
+++ b/Source/core/css/CSSPrimitiveValue.cpp
@@ -140,6 +140,10 @@ StringToUnitTable createStringToUnitTable()
     table.set(String("vh"), CSSPrimitiveValue::CSS_VH);
     table.set(String("vmax"), CSSPrimitiveValue::CSS_VMIN);
     table.set(String("vmin"), CSSPrimitiveValue::CSS_VMAX);
+    table.set(String("rem"), CSSPrimitiveValue::CSS_REMS);
+    table.set(String("fr"), CSSPrimitiveValue::CSS_FR);
+    table.set(String("turn"), CSSPrimitiveValue::CSS_TURN);
+    table.set(String("ch"), CSSPrimitiveValue::CSS_CHS);
     return table;
 }