Remove Collection, Collections and clean up List/Set/Queue implementations of retain/remove.

tools/dom/templates/html/impl/impl_Node.darttemplate

 // Copyright (c) 2012, 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.
 
 part of $LIBRARYNAME;
 
 /**
  * Lazy implementation of the child nodes of an element that does not request
  * the actual child nodes of an element until strictly necessary greatly
  * improving performance for the typical cases where it is not required.
@@ skipping 87 matching lines @@
     return result;
   }
 
   void remove(Object object) {
     if (object is! Node) return;
     Node node = object;
     if (!identical(_this, node.parentNode)) return;
     _this.$dom_removeChild(node);
   }
 
-  void removeAll(Iterable elements) {
-    // This is not using the default removeAll from ListBase because
-    // DOM nodes can be efficiently removed in constant time.
-    for (var element in elements) {
-      remove(element);
-    }
-  }
-
   void _filter(bool test(Node node), bool removeMatching) {
     // This implementation of removeWhere/retainWhere is more efficient
     // than the default in ListBase. Child nodes can be removed in constant
     // time.
     Node child = _this.$dom_firstChild;
     while (child != null) {
       Node nextChild = child.nextSibling;
       if (test(child) == removeMatching) {
         _this.$dom_removeChild(child);
       }
       child = nextChild;
     }
   }
 
-  void retainAll(Iterable elements) {
-    Set retainSet = (elements is Set) ? elements : elements.toSet();
-    _filter(retainSet.contains, false);
-  }
-
   void removeWhere(bool test(Node node)) {
     _filter(test, true);
   }
 
   void retainWhere(bool test(Node node)) {
     _filter(test, false);
   }
 
   void clear() {
     _this.text = '';
@@ skipping 60 matching lines @@
   }
 
   Node operator[](int index) => _this.$dom_childNodes[index];
 }
 
 $(ANNOTATIONS)class $CLASSNAME$EXTENDS$IMPLEMENTS$NATIVESPEC {
   List<Node> get nodes {
     return new _ChildNodeListLazy(this);
   }
 
-  void set nodes(Collection<Node> value) {
+  void set nodes(Iterable<Node> value) {
     // Copy list first since we don't want liveness during iteration.
     // TODO(jacobr): there is a better way to do this.
     List copy = new List.from(value);
     text = '';
     for (Node node in copy) {
       append(node);
     }
   }
 
   /**
@@ skipping 132 matching lines @@
   }
 
   /**
    * Print out a String representation of this Node.
    */
   String toString() => localName == null ?
       (nodeValue == null ? super.toString() : nodeValue) : localName;
 
 $!MEMBERS
 }