Begin implementing V8 bindings for Mojo

mojo/public/bindings/js/v8_exceptions.h

Index: mojo/public/bindings/js/v8_exceptions.h
diff --git a/mojo/public/bindings/js/v8_exceptions.h b/mojo/public/bindings/js/v8_exceptions.h
new file mode 100644
index 0000000000000000000000000000000000000000..8dabaf4df07ae369b9a3477717e01d7d8a4c783f
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+++ b/mojo/public/bindings/js/v8_exceptions.h
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+// Copyright 2013 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#ifndef MOJO_PUBLIC_BINDINGS_JS_V8_EXCEPTIONS_H_
+#define MOJO_PUBLIC_BINDINGS_JS_V8_EXCEPTIONS_H_
+
+#include "v8/include/v8.h"
+
+namespace mojo {
+namespace js {
+
+extern const char kInsufficientArguments[];
+
+void ThrowTypeError(v8::Isolate* isolate, const char* message);
+
+}  // js
+}  // mojo
+
+#endif  // MOJO_PUBLIC_BINDINGS_JS_V8_EXCEPTIONS_H_