Pass column as 4th argument to WorkerGlobalScope.onerror handler

Source/bindings/v8/WorkerScriptController.h

Index: Source/bindings/v8/WorkerScriptController.h
diff --git a/Source/bindings/v8/WorkerScriptController.h b/Source/bindings/v8/WorkerScriptController.h
index 22832f5002b6febb968cb70c9f5b53fdcb6565bd..cfe8876c1a100f5c450fdb9142c149a36508f2a9 100644
--- a/Source/bindings/v8/WorkerScriptController.h
+++ b/Source/bindings/v8/WorkerScriptController.h
@@ -48,6 +48,7 @@ namespace WebCore {
         WorkerGlobalScopeExecutionState()
             : hadException(false)
             , lineNumber(0)
+            , columnNumber(0)
         {
         }
 
@@ -55,6 +56,7 @@ namespace WebCore {
         ScriptValue exception;
         String errorMessage;
         int lineNumber;
+        int columnNumber;
         String sourceURL;
     };