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 9a7dc39682b9e03d4ac25b66abdb3600414eb529..4caea941751a42dd32307253df5179a00da71f12 100644
--- a/Source/core/events/KeyboardEvent.h
+++ b/Source/core/events/KeyboardEvent.h
@@ -37,6 +37,7 @@ struct KeyboardEventInit : public UIEventInit {
     KeyboardEventInit();
 
     String keyIdentifier;
+    String code;
     unsigned location;
     bool ctrlKey;
     bool altKey;
@@ -85,6 +86,8 @@ 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;
@@ -113,6 +116,7 @@ private:
     String m_keyIdentifier;
     unsigned m_location;
     bool m_isAutoRepeat : 1;
+    String m_code;
 };
 
 class KeyboardEventDispatchMediator : public EventDispatchMediator {