Trigger `window.onerror` only for exceptions thrown in the same world.

Source/bindings/v8/V8Initializer.cpp

Index: Source/bindings/v8/V8Initializer.cpp
diff --git a/Source/bindings/v8/V8Initializer.cpp b/Source/bindings/v8/V8Initializer.cpp
index 7c56ff0caf6458ca53f6e87642ac35ec9aaa9c04..e31c12fbdf4c758df66cdd92e5d085cfadf031f8 100644
--- a/Source/bindings/v8/V8Initializer.cpp
+++ b/Source/bindings/v8/V8Initializer.cpp
@@ -102,7 +102,7 @@ static void messageHandlerInMainThread(v8::Handle<v8::Message> message, v8::Hand
     String resource = shouldUseDocumentURL ? firstWindow->document()->url() : toWebCoreString(resourceName);
     AccessControlStatus corsStatus = message->IsSharedCrossOrigin() ? SharableCrossOrigin : NotSharableCrossOrigin;
 
-    RefPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, resource, message->GetLineNumber(), message->GetStartColumn());
+    RefPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, resource, message->GetLineNumber(), message->GetStartColumn(), DOMWrapperWorld::current());
     if (V8DOMWrapper::isDOMWrapper(data)) {
         v8::Handle<v8::Object> obj = v8::Handle<v8::Object>::Cast(data);
         WrapperTypeInfo* type = toWrapperTypeInfo(obj);
@@ -190,7 +190,7 @@ static void messageHandlerInWorker(v8::Handle<v8::Message> message, v8::Handle<v
     if (ScriptExecutionContext* context = getScriptExecutionContext()) {
         String errorMessage = toWebCoreString(message->Get());
         String sourceURL = toWebCoreString(message->GetScriptResourceName());
-        RefPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, sourceURL, message->GetLineNumber(), message->GetStartColumn());
+        RefPtr<ErrorEvent> event = ErrorEvent::create(errorMessage, sourceURL, message->GetLineNumber(), message->GetStartColumn(), DOMWrapperWorld::current());
         AccessControlStatus corsStatus = message->IsSharedCrossOrigin() ? SharableCrossOrigin : NotSharableCrossOrigin;
 
         V8ErrorHandler::storeExceptionOnErrorEventWrapper(event.get(), data, v8::Isolate::GetCurrent());