linux: Add dummy implementation of node bindings.

common/node_bindings_linux.cc

@@ -0,0 +1,24 @@
+// Copyright (c) 2014 GitHub, Inc. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "common/node_bindings_linux.h"
+
+namespace atom {
+
+NodeBindingsLinux::NodeBindingsLinux(bool is_browser)
+    : NodeBindings(is_browser) {
+}
+
+NodeBindingsLinux::~NodeBindingsLinux() {
+}
+
+void NodeBindingsLinux::PollEvents() {
+}
+
+// static
+NodeBindings* NodeBindings::Create(bool is_browser) {
+  return new NodeBindingsLinux(is_browser);
+}
+
+}  // namespace at