Revert "Creating a common library for all DOM types."

sdk/lib/html/templates/immutable_list_mixin.darttemplate

Index: sdk/lib/html/templates/immutable_list_mixin.darttemplate
diff --git a/sdk/lib/html/templates/immutable_list_mixin.darttemplate b/sdk/lib/html/templates/immutable_list_mixin.darttemplate
index bcd7fdc05eaaeade10e5e5acdb6a6c9779af71c7..43479e4864bd8adadc80ae71ad231d7864f93882 100644
--- a/sdk/lib/html/templates/immutable_list_mixin.darttemplate
+++ b/sdk/lib/html/templates/immutable_list_mixin.darttemplate
@@ -25,21 +25,21 @@
   }
 
 $if DEFINE_CONTAINS
-  bool contains($E element) => Collections.contains(this, element);
+  bool contains($E element) => _Collections.contains(this, element);
 $else
   // contains() defined by IDL.
 $endif
 
-  void forEach(void f($E element)) => Collections.forEach(this, f);
+  void forEach(void f($E element)) => _Collections.forEach(this, f);
 
-  Collection map(f($E element)) => Collections.map(this, [], f);
+  Collection map(f($E element)) => _Collections.map(this, [], f);
 
   Collection<$E> filter(bool f($E element)) =>
-     Collections.filter(this, <$E>[], f);
+     _Collections.filter(this, <$E>[], f);
 
-  bool every(bool f($E element)) => Collections.every(this, f);
+  bool every(bool f($E element)) => _Collections.every(this, f);
 
-  bool some(bool f($E element)) => Collections.some(this, f);
+  bool some(bool f($E element)) => _Collections.some(this, f);
 
   bool get isEmpty => this.length == 0;