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

Source/core/dom/ErrorEvent.cpp

Index: Source/core/dom/ErrorEvent.cpp
diff --git a/Source/core/dom/ErrorEvent.cpp b/Source/core/dom/ErrorEvent.cpp
index db11e534da322ceb9441137f84bf18ebca988f0f..3558b84ae85c751471f2f4ab9c4ca87baa62ce25 100644
--- a/Source/core/dom/ErrorEvent.cpp
+++ b/Source/core/dom/ErrorEvent.cpp
@@ -31,6 +31,7 @@
 #include "config.h"
 #include "core/dom/ErrorEvent.h"
 
+#include "bindings/v8/ScriptValue.h"
 #include "core/dom/EventNames.h"
 
 namespace WebCore {
@@ -53,18 +54,21 @@ ErrorEvent::ErrorEvent(const AtomicString& type, const ErrorEventInit& initializ
     , m_fileName(initializer.filename)
     , m_lineNumber(initializer.lineno)
     , m_columnNumber(initializer.column)
+    , m_error(initializer.error)
 {
     ScriptWrappable::init(this);
 }
 
-ErrorEvent::ErrorEvent(const String& message, const String& fileName, unsigned lineNumber, unsigned columnNumber)
+ErrorEvent::ErrorEvent(const String& message, const String& fileName, unsigned lineNumber, unsigned columnNumber, const ScriptValue& error)
     : Event(eventNames().errorEvent, false, true)
     , m_message(message)
     , m_fileName(fileName)
     , m_lineNumber(lineNumber)
     , m_columnNumber(columnNumber)
+    , m_error(error)
 {
     ScriptWrappable::init(this);
+class ScriptValue;
 }
 
 ErrorEvent::~ErrorEvent()