Revert "Add tests for Element#elements."

client/html/generated/src/wrapping/_CanvasPixelArrayWrappingImplementation.dart

 // Copyright (c) 2011, 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 - generated code.
 
 class CanvasPixelArrayWrappingImplementation extends DOMWrapperBase implements CanvasPixelArray {
   CanvasPixelArrayWrappingImplementation._wrap(ptr) : super._wrap(ptr) {}
 
   int get length() { return _ptr.length; }
@@ skipping 20 matching lines @@
 
   void sort(int compare(int a, int b)) {
     throw new UnsupportedOperationException("Cannot sort immutable List.");
   }
 
   void copyFrom(List<Object> src, int srcStart, int dstStart, int count) {
     throw new UnsupportedOperationException("This object is immutable.");
   }
 
   int indexOf(int element, [int start = 0]) {
-    return Lists.indexOf(this, element, start, this.length);
+    return _Lists.indexOf(this, element, start, this.length);
   }
 
   int lastIndexOf(int element, [int start = null]) {
     if (start === null) start = length - 1;
-    return Lists.lastIndexOf(this, element, start);
+    return _Lists.lastIndexOf(this, element, start);
   }
 
   int clear() {
     throw new UnsupportedOperationException("Cannot clear immutable List.");
   }
 
   int removeLast() {
     throw new UnsupportedOperationException("Cannot removeLast on immutable List.");
   }
 
@@ skipping 38 matching lines @@
   }
 
   bool isEmpty() {
     return length == 0;
   }
 
   Iterator<int> iterator() {
     return new _FixedSizeListIterator<int>(this);
   }
 }