Regenerate html files after b42dbe524cd1293a0ccea166d985a1402c5ce8ba

tools/dom/templates/html/impl/impl_CSSStyleDeclaration.darttemplate

Index: tools/dom/templates/html/impl/impl_CSSStyleDeclaration.darttemplate
diff --git a/tools/dom/templates/html/impl/impl_CSSStyleDeclaration.darttemplate b/tools/dom/templates/html/impl/impl_CSSStyleDeclaration.darttemplate
index 495011e235f45515de937c54d875cf616470d1a1..1c33e5f7a44c9c6e71f4dfb641ed50aea8ea08d3 100644
--- a/tools/dom/templates/html/impl/impl_CSSStyleDeclaration.darttemplate
+++ b/tools/dom/templates/html/impl/impl_CSSStyleDeclaration.darttemplate
@@ -21,6 +21,11 @@ $(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME $EXTENDS with
     return style;
   }
 
+  /// Returns the value of the property if the provided *CSS* property
+  /// name is supported on this element and if the value is set. Otherwise
+  /// returns an empty string.
+  ///
+  /// Please note the property name uses camelCase, not-hyphens.
   String getPropertyValue(String propertyName) {
     var propValue = _getPropertyValueHelper(propertyName);
     return propValue != null ? propValue : '';