Don't separate node bindings into renderer and browser part.

Since we are going to use embeding thread to implement message
integration on all platforms, we do not need to separate renderer and
browser anymore.

common/node_bindings_win.h

@@ -0,0 +1,26 @@
+// Copyright (c) 2013 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.
+
+#ifndef ATOM_COMMON_NODE_BINDINGS_WIN_
+#define ATOM_COMMON_NODE_BINDINGS_WIN_
+
+#include "base/compiler_specific.h"
+#include "common/node_bindings.h"
+
+namespace atom {
+
+class NodeBindingsWin : public NodeBindings {
+ public:
+  explicit NodeBindingsWin(bool is_browser);
+  virtual ~NodeBindingsWin();
+
+ private:
+  virtual void PollEvents() OVERRIDE;
+
+  DISALLOW_COPY_AND_ASSIGN(NodeBindingsWin);
+};
+
+}  // namespace atom
+
+#endif  // ATOM_COMMON_NODE_BINDINGS_WIN_