Introduce css3TextEnabled instead of CSS3_TEXT.

Source/core/page/RuntimeCSSEnabled.cpp

Index: Source/core/page/RuntimeCSSEnabled.cpp
diff --git a/Source/core/page/RuntimeCSSEnabled.cpp b/Source/core/page/RuntimeCSSEnabled.cpp
index 5d38e76aef852bf8ad981985c718c02262a185a1..49b443ea1a377981f28e7ddf89263e863954de93 100644
--- a/Source/core/page/RuntimeCSSEnabled.cpp
+++ b/Source/core/page/RuntimeCSSEnabled.cpp
@@ -69,6 +69,10 @@ static void setPropertySwitchesFromRuntimeFeatures(BoolVector& properties)
         CSSPropertyTextDecorationStyle,
     };
     setCSSPropertiesEnabled(css3TextDecorationProperties, WTF_ARRAY_LENGTH(css3TextDecorationProperties), RuntimeEnabledFeatures::css3TextDecorationsEnabled());
+    CSSPropertyID css3TextProperties[] = {
+        CSSPropertyTextAlignLast,
+    };
+    setCSSPropertiesEnabled(css3TextProperties, WTF_ARRAY_LENGTH(css3TextProperties), RuntimeEnabledFeatures::css3TextEnabled());
     CSSPropertyID cssGridLayoutProperties[] = {
         CSSPropertyGridAutoColumns,
         CSSPropertyGridAutoRows,