Draft implementation of c++ bindings generation.

client/dom/templates/dom/native/cpp_header.template

Index: client/dom/templates/dom/native/cpp_header.template
diff --git a/client/dom/templates/dom/native/cpp_header.template b/client/dom/templates/dom/native/cpp_header.template
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+++ b/client/dom/templates/dom/native/cpp_header.template
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+// 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.
+
+#ifndef Dart$(INTERFACE)_h
+#define Dart$(INTERFACE)_h
+
+#include "DartDOMWrapper.h"
+$WEBCORE_INCLUDE
+$ADDITIONAL_INCLUDES
+#include <dart_api.h>
+
+namespace WebCore {
+
+struct Dart$INTERFACE {
+    static const char* const dartImplementationClassName;
+    typedef $WEBCORE_CLASS_NAME NativeType;
+
+    static PassRefPtr<NativeType> toNative(Dart_Handle handle, Dart_Handle& exception)
+    {
+        return DartDOMWrapper::unwrapDartWrapper<Dart$INTERFACE>(handle, exception);
+    }
+
+    static bool instanceOf(Dart_Handle handle)
+    {
+        return DartDOMWrapper::instanceOf(dartImplementationClassName, handle);
+    }
+
+    static Dart_NativeFunction resolver(Dart_Handle name, int argumentCount);
+};
+
+$TO_DART_VALUE
+inline Dart_Handle toDartValue(PassRefPtr< $WEBCORE_CLASS_NAME > value)
+{
+    return toDartValue(value.get());
+}
+
+namespace Dart$(INTERFACE)Internal {
+$DECLARATIONS
+}
+
+}
+
+#endif // Dart$(INTERFACE)_h