V8 Binding: Introduce toNativeWithTypeCheck

Source/bindings/v8/custom/V8ArrayBufferCustom.h

Index: Source/bindings/v8/custom/V8ArrayBufferCustom.h
diff --git a/Source/bindings/v8/custom/V8ArrayBufferCustom.h b/Source/bindings/v8/custom/V8ArrayBufferCustom.h
index 96b84afb1643899cec78ea9e68f5e74754b257fc..ffc729c59710b1a33fbb3c72c8b2bb4a542e849c 100644
--- a/Source/bindings/v8/custom/V8ArrayBufferCustom.h
+++ b/Source/bindings/v8/custom/V8ArrayBufferCustom.h
@@ -53,6 +53,7 @@ class V8ArrayBuffer {
 public:
     static bool hasInstance(v8::Handle<v8::Value>, v8::Isolate*);
     static ArrayBuffer* toNative(v8::Handle<v8::Object>);
+    static ArrayBuffer* toNativeWithTypeCheck(v8::Isolate*, v8::Handle<v8::Value>);
     static void derefObject(void*);
     static const WrapperTypeInfo wrapperTypeInfo;
     static const int internalFieldCount = v8DefaultWrapperInternalFieldCount;