Use TRYCATCH_FOR_V8STRINGRESOURCE in AbstractEventListener::invokeEventHandler()

Source/bindings/v8/V8AbstractEventListener.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 138 matching lines @@
     }
 
     if (event->type() == eventNames().beforeunloadEvent || event->type() == eventNames().unloadEvent)
         DateExtension::get()->setAllowSleep(true, v8Context->GetIsolate());
 
     ASSERT(!handleOutOfMemory() || returnValue.IsEmpty());
 
     if (returnValue.IsEmpty())
         return;
 
-    if (!returnValue->IsNull() && !returnValue->IsUndefined() && event->isBeforeUnloadEvent())
-        toBeforeUnloadEvent(event)->setReturnValue(toWebCoreString(returnValue));
+    if (!returnValue->IsNull() && !returnValue->IsUndefined() && event->isBeforeUnloadEvent()) {
+        V8TRYCATCH_FOR_V8STRINGRESOURCE_VOID(V8StringResource<>, stringReturnValue, returnValue);
+        toBeforeUnloadEvent(event)->setReturnValue(stringReturnValue);
+    }
 
     if (m_isAttribute && shouldPreventDefault(returnValue))
         event->preventDefault();
 }
 
 bool V8AbstractEventListener::shouldPreventDefault(v8::Local<v8::Value> returnValue)
 {
     // Prevent default action if the return value is false in accord with the spec
     // http://www.w3.org/TR/html5/webappapis.html#event-handler-attributes
     return returnValue->IsBoolean() && !returnValue->BooleanValue();
@@ skipping 12 matching lines @@
         return v8::Local<v8::Object>();
     return v8::Local<v8::Object>::New(v8::Handle<v8::Object>::Cast(value));
 }
 
 void V8AbstractEventListener::makeWeakCallback(v8::Isolate*, v8::Persistent<v8::Object>*, V8AbstractEventListener* listener)
 {
     listener->m_listener.clear();
 }
 
 } // namespace WebCore