Introduce NavigatorID IDL interface

Source/core/page/NavigatorBase.h

Index: Source/core/page/NavigatorBase.h
diff --git a/Source/core/page/NavigatorBase.h b/Source/core/page/NavigatorBase.h
index f5c828a2a237ee0d8e3f221d3efebc87a5212abf..26922b3dda1b91c055f8fb0dd9d786e58292886b 100644
--- a/Source/core/page/NavigatorBase.h
+++ b/Source/core/page/NavigatorBase.h
@@ -32,13 +32,16 @@ namespace WebCore {
 
     class NavigatorBase {
     public:
-        String appName() const;
-        String appVersion() const;
         virtual String userAgent() const = 0;
-        String platform() const;
 
+        // FIXME: The following should be moved to NavigatorID and
+        // exposed on WorkerNavigator as well.
         String appCodeName() const;
         String product() const;
+
+        // FIXME: The following is not part of the specification and is only
+        // exposed on Navigator. It should be moved to Navigator (or exposed
+        // on WorkerNavigator as well).
         String productSub() const;
         String vendor() const;
         String vendorSub() const;