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

Source/bindings/v8/WorkerScriptController.cpp

Index: Source/bindings/v8/WorkerScriptController.cpp
diff --git a/Source/bindings/v8/WorkerScriptController.cpp b/Source/bindings/v8/WorkerScriptController.cpp
index c95df01b73cd2d2c6dbb01a15d2fbaf3c72ea0ee..e7e4492198601eb0334cd1de5d7483b3f482d7b6 100644
--- a/Source/bindings/v8/WorkerScriptController.cpp
+++ b/Source/bindings/v8/WorkerScriptController.cpp
@@ -167,7 +167,8 @@ ScriptValue WorkerScriptController::evaluate(const String& script, const String&
         state->lineNumber = message->GetLineNumber();
         state->columnNumber = message->GetStartColumn();
         state->sourceURL = toWebCoreString(message->GetScriptResourceName());
-        if (m_workerGlobalScope->sanitizeScriptError(state->errorMessage, state->lineNumber, state->columnNumber, state->sourceURL))
+        state->error = ScriptValue(block.Exception());
+        if (m_workerGlobalScope->sanitizeScriptError(state->errorMessage, state->lineNumber, state->columnNumber, state->sourceURL, state->error))
             state->exception = throwError(v8GeneralError, state->errorMessage.utf8().data(), m_isolate);
         else
             state->exception = ScriptValue(block.Exception());