Regenerate html files after b42dbe524cd1293a0ccea166d985a1402c5ce8ba

sdk/lib/html/dart2js/html_dart2js.dart

Index: sdk/lib/html/dart2js/html_dart2js.dart
diff --git a/sdk/lib/html/dart2js/html_dart2js.dart b/sdk/lib/html/dart2js/html_dart2js.dart
index 112f7fb72cf6012367380a5f02f6118f2bf63662..a1e5a4c422af450fdad3006a0e037ad24de79107 100644
--- a/sdk/lib/html/dart2js/html_dart2js.dart
+++ b/sdk/lib/html/dart2js/html_dart2js.dart
@@ -4056,6 +4056,11 @@ class CssStyleDeclaration  extends Interceptor 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 : '';