Generate StyleVisualData in ComputedStyleBase.

third_party/WebKit/Source/core/css/ComputedStyleExtraFields.json5

Index: third_party/WebKit/Source/core/css/ComputedStyleExtraFields.json5
diff --git a/third_party/WebKit/Source/core/css/ComputedStyleExtraFields.json5 b/third_party/WebKit/Source/core/css/ComputedStyleExtraFields.json5
index e32263e0de504f76d4d99ab0c72f578a755d85c0..07ceaf17c8960032a071a9589331572b980c17de 100644
--- a/third_party/WebKit/Source/core/css/ComputedStyleExtraFields.json5
+++ b/third_party/WebKit/Source/core/css/ComputedStyleExtraFields.json5
@@ -185,5 +185,21 @@
       default_value: "Color::kTransparent",
       field_group: "background",
     },
+    {
+      name: "TextDecoration",
+      field_template: "storage_only",
+      type_name: "TextDecoration",
+      field_size: 4,
+      default_value: "kTextDecorationNone",
+      field_group: "visual",
+    },
+    {
+      name: "HasAutoClip",
+      field_template: "storage_only",
+      type_name: "bool",
+      field_size: 1,
+      default_value: "true",
+      field_group: "visual",
+    },
   ],
 }