Add map to dart:dom collections.

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

Index: client/dom/generated/src/wrapping/_CanvasPixelArrayWrappingImplementation.dart
diff --git a/client/dom/generated/src/wrapping/_CanvasPixelArrayWrappingImplementation.dart b/client/dom/generated/src/wrapping/_CanvasPixelArrayWrappingImplementation.dart
index 6dc4ec3a48975ded137d4d20dccbbd07ca78d80b..baedc034d02936ddcfc5c21c378e9e38261758e7 100644
--- a/client/dom/generated/src/wrapping/_CanvasPixelArrayWrappingImplementation.dart
+++ b/client/dom/generated/src/wrapping/_CanvasPixelArrayWrappingImplementation.dart
@@ -67,6 +67,10 @@ class _CanvasPixelArrayWrappingImplementation extends DOMWrapperBase implements
     _Collections.forEach(this, f);
   }
 
+  Collection map(f(int element)) {
+    return _Collections.map(this, [], f);
+  }
+
   Collection<int> filter(bool f(int element)) {
     return _Collections.filter(this, new List<int>(), f);
   }