Remove lib/dom directory!

lib/dom/templates/html/dartium/cpp_implementation.template

-// 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.
-
-// WARNING: Do not edit - generated code.
-
-#include "config.h"
-#include "Dart$(INTERFACE).h"
-
-$INCLUDES
-namespace WebCore {
-
-namespace Dart$(INTERFACE)Internal {
-$CALLBACKS
-}
-
-Dart_NativeFunction Dart$(INTERFACE)::resolver(Dart_Handle nameHandle, int argumentCount)
-{
-    String name = DartUtilities::toString(nameHandle);
-
-$RESOLVER
-    return 0;
-}
-
-const char* const Dart$(INTERFACE)::dartImplementationClassName = "$DART_IMPLEMENTATION_CLASS";
-
-}