Add 'error' parameter to 'window.onerror' handlers.

Source/bindings/v8/custom/V8ErrorEventCustom.cpp

 /*
  * Copyright (C) 2013 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 11 matching lines @@
  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "config.h"
+#include "V8ErrorEvent.h"
+
 #include "RuntimeEnabledFeatures.h"
-
-#include "core/workers/SharedWorkerRepository.h"
+#include "V8Event.h"
+#include "bindings/v8/DOMWrapperWorld.h"
+#include "bindings/v8/Dictionary.h"
+#include "bindings/v8/ScriptState.h"
+#include "bindings/v8/SerializedScriptValue.h"
+#include "bindings/v8/V8Binding.h"
+#include "bindings/v8/V8DOMWrapper.h"
+#include "bindings/v8/V8HiddenPropertyName.h"
+#include "core/dom/ContextFeatures.h"
+#include "core/page/Frame.h"
 
 namespace WebCore {
 
-bool RuntimeEnabledFeatures::sharedWorkerEnabled()
+void V8ErrorEvent::errorAttrGetterCustom(v8::Local<v8::String>, const v8::PropertyCallbackInfo<v8::Value>& info)
 {
-    return SharedWorkerRepository::isAvailable();
+    v8::Handle<v8::Value> error = info.Holder()->GetHiddenValue(V8HiddenPropertyName::error());
+
+    if (!error.IsEmpty()) {
+        v8SetReturnValue(info, error);
+        return;
+    }
+
+    v8SetReturnValue(info, v8::Null(info.GetIsolate()));

[dcarney, 2013/08/01 08:05:21]

v8SetReturnValueNull

 }
 
 } // namespace WebCore