Hide internal methods like wrap_jso from the dart:html public interface

sdk/lib/js/dartium/js_dartium.dart

 // Copyright (c) 2013, 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.
 
 /**
  * Support for interoperating with JavaScript.
  *
  * This library provides access to JavaScript objects from Dart, allowing
  * Dart code to get and set properties, and call methods of JavaScript objects
  * and invoke JavaScript functions. The library takes care of converting
@@ skipping 74 matching lines @@
  *
  *     var jsArray = new JsObject.jsify([1, 2, 3]);
  */
 library dart.js;
 
 import 'dart:collection' show ListMixin;
 import 'dart:nativewrappers';
 import 'dart:math' as math;
 import 'dart:mirrors' as mirrors;
 import 'dart:html' as html;
+import 'dart:html_common' as html_common;
 import 'dart:indexed_db' as indexed_db;
 import 'dart:typed_data';
 
 // Pretend we are always in checked mode as we aren't interested in users
 // running Dartium code outside of checked mode.
 final bool CHECK_JS_INVOCATIONS = true;
 
 final _allowedMethods = new Map<Symbol, _DeclarationSet>();
 final _allowedGetters = new Map<Symbol, _DeclarationSet>();
 final _allowedSetters = new Map<Symbol, _DeclarationSet>();
@@ skipping 588 matching lines @@
 bool get _finalized native "Js_interfacesFinalized_Callback";
 
 JsObject get context {
   if (_cachedContext == null) {
     _cachedContext = _context;
   }
   return _cachedContext;
 }
 
 _maybeWrap(o) {
-  var wrapped = html.wrap_jso_no_SerializedScriptvalue(o);
+  var wrapped = html_common.wrap_jso_no_SerializedScriptvalue(o);
   if (identical(wrapped, o)) return o;
   return (wrapped is html.Blob
       || wrapped is html.Event
       || wrapped is indexed_db.KeyRange
       || wrapped is html.ImageData
       || wrapped is html.Node
       || wrapped is TypedData
       || wrapped is html.Window) ? wrapped : o;
 }
 
@@ skipping 98 matching lines @@
    */
   factory JsObject.jsify(object) {
     if ((object is! Map) && (object is! Iterable)) {
       throw new ArgumentError("object must be a Map or Iterable");
     }
     return _jsify(object);
   }
 
   static JsObject _jsify(object) native "JsObject_jsify";
 
-  static JsObject _fromBrowserObject(object) => html.unwrap_jso(object);
+  static JsObject _fromBrowserObject(object) => html_common.unwrap_jso(object);
 
   /**
    * Returns the value associated with [property] from the proxied JavaScript
    * object.
    *
    * The type of [property] must be either [String] or [num].
    */
   operator [](property) {
     try {
       return _maybeWrap(_operator_getter(property));
@@ skipping 18 matching lines @@
       throw new html.DomException.jsInterop(e);
     }
   }
   _operator_setter(property, value) native "JsObject_[]=";
 
   int get hashCode native "JsObject_hashCode";
 
   operator ==(other) {
     var is_JsObject = other is JsObject;
     if (!is_JsObject) {
-      other = html.unwrap_jso(other);
+      other = html_common.unwrap_jso(other);
       is_JsObject = other is JsObject;
     }
     return is_JsObject && _identityEquality(this, other);
   }
 
   static bool _identityEquality(
       JsObject a, JsObject b) native "JsObject_identityEquality";
 
   /**
    * Returns `true` if the JavaScript object contains the specified property
@@ skipping 302 matching lines @@
     return f;
   } else {
     var ret = _interopCaptureThisExpando[f];
     if (ret == null) {
       ret = new JsFunction.withThis(f);
       _interopCaptureThisExpando[f] = ret;
     }
     return ret;
   }
 }