Add min and max to Iterable and Stream.

sdk/lib/html/templates/html/impl/impl_Element.darttemplate

Index: sdk/lib/html/templates/html/impl/impl_Element.darttemplate
diff --git a/sdk/lib/html/templates/html/impl/impl_Element.darttemplate b/sdk/lib/html/templates/html/impl/impl_Element.darttemplate
index cb6ba73c5ce4224fe212e17f0e5cb65186b757de..a41c4919ad96157df944ed3d774e74939367e12d 100644
--- a/sdk/lib/html/templates/html/impl/impl_Element.darttemplate
+++ b/sdk/lib/html/templates/html/impl/impl_Element.darttemplate
@@ -208,6 +208,14 @@ class _ChildrenElementList implements List {
     if (length > 1) throw new StateError("More than one element");
     return first;
   }
+
+  Element min([int compare(Element a, Element b)]) {
+    return _Collections.minInList(this, compare);
+  }
+
+  Element max([int compare(Element a, Element b)]) {
+    return _Collections.maxInList(this, compare);
+  }
 }
 
 // TODO(jacobr): this is an inefficient implementation but it is hard to see
@@ -368,6 +376,14 @@ class _FrozenElementList implements List {
   Element get last => _nodeList.last;
 
   Element get single => _nodeList.single;
+
+  Element min([int compare(Element a, Element b)]) {
+    return _Collections.minInList(this, compare);
+  }
+
+  Element max([int compare(Element a, Element b)]) {
+    return _Collections.maxInList(this, compare);
+  }
 }
 
 class _FrozenElementListIterator implements Iterator<Element> {