binidngs: Make callInternalFunction return MaybeLocal

Source/bindings/core/v8/V8LazyEventListener.cpp

 /*
  * Copyright (C) 2006, 2007, 2008, 2009 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 170 matching lines @@
     if (thisObject.IsEmpty())
         return;
     if (!v8CallBoolean(thisObject->ForceSet(scriptState->context(), v8::Integer::New(isolate(), 0), nodeWrapper)))
         return;
     if (!v8CallBoolean(thisObject->ForceSet(scriptState->context(), v8::Integer::New(isolate(), 1), formWrapper)))
         return;
     if (!v8CallBoolean(thisObject->ForceSet(scriptState->context(), v8::Integer::New(isolate(), 2), documentWrapper)))
         return;
 
     // FIXME: Remove this code when we stop doing the 'with' hack above.
-    v8::Local<v8::Value> innerValue = V8ScriptRunner::callInternalFunction(intermediateFunction, thisObject, 0, 0, isolate());
-    if (innerValue.IsEmpty() || !innerValue->IsFunction())
+    v8::Local<v8::Value> innerValue;
+    if (!V8ScriptRunner::callInternalFunction(intermediateFunction, thisObject, 0, 0, isolate()).ToLocal(&innerValue) || !innerValue->IsFunction())
         return;
 
     v8::Local<v8::Function> wrappedFunction = innerValue.As<v8::Function>();
 
     // Change the toString function on the wrapper function to avoid it
     // returning the source for the actual wrapper function. Instead it
     // returns source for a clean wrapper function with the event
     // argument wrapping the event source code. The reason for this is
     // that some web sites use toString on event functions and eval the
     // source returned (sometimes a RegExp is applied as well) for some
@@ skipping 15 matching lines @@
     // // Since we only parse once, there's no need to keep data used for parsing around anymore.
     // m_functionName = String();
     // m_code = String();
     // m_eventParameterName = String();
     // m_sourceURL = String();
 
     setListenerObject(wrappedFunction);
 }
 
 } // namespace blink