Adding support for DOM3 KeyboardEvents Code in KeyboardEvents

Source/core/events/KeyboardEvent.h

Index: Source/core/events/KeyboardEvent.h
diff --git a/Source/core/events/KeyboardEvent.h b/Source/core/events/KeyboardEvent.h
index 31bd42f7fcd285fb092a61600df662a70a8e603b..1c4c3536580af7c239d505426ed93a73c451d61c 100644
--- a/Source/core/events/KeyboardEvent.h
+++ b/Source/core/events/KeyboardEvent.h
@@ -36,6 +36,7 @@ struct KeyboardEventInit : public UIEventInit {
     KeyboardEventInit();
 
     String keyIdentifier;
+    String code;
     unsigned location;
     bool ctrlKey;
     bool altKey;
@@ -84,6 +85,8 @@ public:
         bool ctrlKey, bool altKey, bool shiftKey, bool metaKey);
 
     const String& keyIdentifier() const { return m_keyIdentifier; }
+    const String& code() { return m_code; };
+
     unsigned location() const { return m_location; }
 
     bool getModifierState(const String& keyIdentifier) const;
@@ -112,6 +115,7 @@ private:
     String m_keyIdentifier;
     unsigned m_location;
     bool m_isAutoRepeat : 1;
+    String m_code;
 };
 
 class KeyboardEventDispatchMediator : public EventDispatchMediator {