Make it possible to have <object>'s scriptableObject as a v8 object instead of NPObject.

Source/bindings/core/v8/V8DOMActivityLogger.cpp

Index: Source/bindings/core/v8/V8DOMActivityLogger.cpp
diff --git a/Source/bindings/core/v8/V8DOMActivityLogger.cpp b/Source/bindings/core/v8/V8DOMActivityLogger.cpp
index f7456c2fdc60488cd19dbc1651f92d619cffbae9..546dec71e901c91361765260de80d57e4778165d 100644
--- a/Source/bindings/core/v8/V8DOMActivityLogger.cpp
+++ b/Source/bindings/core/v8/V8DOMActivityLogger.cpp
@@ -92,6 +92,7 @@ V8DOMActivityLogger* V8DOMActivityLogger::currentActivityLoggerIfIsolatedWorld()
     if (!isolate->InContext())
         return 0;
 
+    v8::HandleScope handleScope(isolate);
     v8::Handle<v8::Context> context = isolate->GetCurrentContext();
     if (context.IsEmpty() || !toDOMWindow(context))
         return 0;