Refined types for most HtmlElement factory constructors

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

 
 // Copyright (c) 2014, the Dart project authors.  Please see the AUTHORS file
 // for details. All rights reserved. Use of this source code is governed by a
 // BSD-style license that can be found in the LICENSE file.
 
 // WARNING: DO NOT EDIT THIS TEMPLATE FILE.
 // The template file was generated by scripts/css_code_generator.py
 
 // Source of CSS properties:
 //   CSSPropertyNames.in
 
 part of $LIBRARYNAME;
 
 $(ANNOTATIONS)$(NATIVESPEC)$(CLASS_MODIFIERS)class $CLASSNAME $EXTENDS with
     $(CLASSNAME)Base $IMPLEMENTS {
   factory $CLASSNAME() => new CssStyleDeclaration.css('');
 
   factory $CLASSNAME.css(String css) {
-    final style = new Element.tag('div').style;
+    final style = new DivElement().style;
     style.cssText = css;
     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) {
@@ skipping 4692 matching lines @@
 
   /** Gets the value of "zoom" */
   String get zoom =>
     getPropertyValue('zoom');
 
   /** Sets the value of "zoom" */
   set zoom(String value) {
     setProperty('zoom', value, '');
   }
 }