Generate keyword part of vertical-align property in ComputedStyleBase.

third_party/WebKit/Source/build/scripts/make_computed_style_base.py

Index: third_party/WebKit/Source/build/scripts/make_computed_style_base.py
diff --git a/third_party/WebKit/Source/build/scripts/make_computed_style_base.py b/third_party/WebKit/Source/build/scripts/make_computed_style_base.py
index 174941950ab6248421308683cec646ce9470580b..6bbc247eebb12515c9d224e364e0fa2a1b2ef2f6 100755
--- a/third_party/WebKit/Source/build/scripts/make_computed_style_base.py
+++ b/third_party/WebKit/Source/build/scripts/make_computed_style_base.py
@@ -59,6 +59,11 @@ NONPROPERTIES = [
     # True if 'underline solid' is the only text decoration on this element.
     {'name': 'HasSimpleUnderline', 'field_template': 'storage_only', 'size': 1, 'default_value': 'false',
      'type_name': 'bool', 'inherited': True, 'independent': False},
+    # TODO(shend): vertical align is actually a CSS property, but since we don't support union fields
+    # which can be either a keyword or Length, this is generated as a nonproperty for now. Remove this
+    # once we can support union fields and groups.
+    {'name': 'VerticalAlign', 'field_template': 'storage_only', 'size': 4, 'default_value': 'EVerticalAlign::kBaseline',
+     'type_name': 'EVerticalAlign', 'inherited': False, 'independent': False},
 ]