Optimize dartium dart:html bindings so real world application performance is acceptable. Improves d…

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
@@ skipping 45 matching lines @@
     // not having a value at all. (Ultimately we'll want the native method to
     // return null if the property doesn't exist and empty string if it's
     // defined but just doesn't have a value.
     return _hasProperty(propertyName);
 $endif
   }
 
 $if DARTIUM
   bool _hasProperty(String propertyName) =>
   $if JSINTEROP
-      _blink.BlinkCSSStyleDeclaration.instance.$__propertyQuery___Callback_1_(unwrap_jso(this), propertyName) != null;
+      _blink.BlinkCSSStyleDeclaration.instance.$__propertyQuery___Callback_1_(this, propertyName);
   $else
       _blink.BlinkCSSStyleDeclaration.$__propertyQuery___Callback_1(this, propertyName);
   $endif
 $endif
 
   @DomName('CSSStyleDeclaration.setProperty')
   void setProperty(String propertyName, String value, [String priority]) {
     return _setPropertyHelper(_browserPropertyName(propertyName),
       value, priority);
   }
@@ skipping 4640 matching lines @@
 
   /** Gets the value of "zoom" */
   String get zoom =>
     getPropertyValue('zoom');
 
   /** Sets the value of "zoom" */
   set zoom(String value) {
     setProperty('zoom', value, '');
   }
 }