WIP bindings: Add support for the record<K,V> WebIDL type.

third_party/WebKit/Source/bindings/tests/results/core/LongCallbackFunction.cpp

 // Copyright 2014 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.
 
 // This file has been auto-generated by code_generator_v8.py.
 // DO NOT MODIFY!
 
 // This file has been generated from the Jinja2 template in
 // third_party/WebKit/Source/bindings/templates/callback_function.cpp.tmpl
 
@@ skipping 60 matching lines @@
   if (V8ScriptRunner::callFunction(m_callback.newLocal(m_scriptState->isolate()), m_scriptState->getExecutionContext(), thisValue, 2, argv, m_scriptState->isolate()).ToLocal(&v8ReturnValue)) {
     int cppValue = toInt32(m_scriptState->isolate(), v8ReturnValue, NormalConversion, exceptionState);
         if (exceptionState.hadException())
           return false;
     returnValue = cppValue;
     return true;
   }
   return false;
 }
 
+LongCallbackFunction* NativeValueTraits<LongCallbackFunction>::nativeValue(v8::Isolate* isolate, v8::Local<v8::Value> value, ExceptionState& exceptionState) {
+  return LongCallbackFunction::create(ScriptState::current(isolate), value);
+}
+
 }  // namespace blink