Revert "Dartium JS Interop enabled."

tools/dom/src/_chrome/app_runtime.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.
 
 // Generated from namespace: app.runtime
 
 part of chrome;
 
 /**
  * Types
@@ skipping 14 matching lines @@
    * Private constructor
    */
   AppRuntimeLaunchItem._proxy(_jsObject) : super._proxy(_jsObject);
 
   /*
    * Public accessors
    */
   /// FileEntry for the file.
   FileEntry get entry => JS('FileEntry', '#.entry', this._jsObject);
 
-  set entry(FileEntry entry) {
+  void set entry(FileEntry entry) {
     JS('void', '#.entry = #', this._jsObject, convertArgument(entry));
   }
 
   /// The MIME type of the file.
   String get type => JS('String', '#.type', this._jsObject);
 
-  set type(String type) {
+  void set type(String type) {
     JS('void', '#.type = #', this._jsObject, type);
   }
 
 }
 
 class AppRuntimeLaunchData extends ChromeObject {
   /*
    * Public constructor
    */
   AppRuntimeLaunchData({String id, List<AppRuntimeLaunchItem> items}) {
     if (id != null)
       this.id = id;
     if (items != null)
       this.items = items;
   }
 
   /*
    * Private constructor
    */
   AppRuntimeLaunchData._proxy(_jsObject) : super._proxy(_jsObject);
 
   /*
    * Public accessors
    */
   /// The id of the file handler that the app is being invoked with.
   String get id => JS('String', '#.id', this._jsObject);
 
-  set id(String id) {
+  void set id(String id) {
     JS('void', '#.id = #', this._jsObject, id);
   }
 
   List<AppRuntimeLaunchItem> get items {
     List<AppRuntimeLaunchItem> __proxy_items = new List<AppRuntimeLaunchItem>();
     int count = JS('int', '#.items.length', this._jsObject);
     for (int i = 0; i < count; i++) {
       var item = JS('', '#.items[#]', this._jsObject, i);
       __proxy_items.add(new AppRuntimeLaunchItem._proxy(item));
     }
     return __proxy_items;
   }
 
-  set items(List<AppRuntimeLaunchItem> items) {
+  void set items(List<AppRuntimeLaunchItem> items) {
     JS('void', '#.items = #', this._jsObject, convertArgument(items));
   }
 
 }
 
 /**
  * Events
  */
 
 /// Fired when an app is launched from the launcher.
@@ skipping 53 matching lines @@
   /*
    * Events
    */
   Event_app_runtime_onLaunched onLaunched;
   Event_app_runtime_onRestarted onRestarted;
   API_app_runtime(this._jsObject) {
     onLaunched = new Event_app_runtime_onLaunched(JS('', '#.onLaunched', this._jsObject));
     onRestarted = new Event_app_runtime_onRestarted(JS('', '#.onRestarted', this._jsObject));
   }
 }