Fix toV8 with empty context in InspectorOverlay::overlayPage()

Source/core/inspector/InspectorOverlay.cpp

Index: Source/core/inspector/InspectorOverlay.cpp
diff --git a/Source/core/inspector/InspectorOverlay.cpp b/Source/core/inspector/InspectorOverlay.cpp
index e025608cce817ade1ffbf9af9044aee2e2caf6a5..17cecb3a3ef620affae1eef3c2bb58f204d578ac 100644
--- a/Source/core/inspector/InspectorOverlay.cpp
+++ b/Source/core/inspector/InspectorOverlay.cpp
@@ -726,8 +726,8 @@ Page* InspectorOverlay::overlayPage()
     v8::Handle<v8::Context> frameContext = toV8Context(isolate, frame.get(), DOMWrapperWorld::mainWorld());
     ASSERT(!frameContext.IsEmpty());
     v8::Context::Scope contextScope(frameContext);
-    v8::Handle<v8::Value> overlayHostObj = toV8(m_overlayHost.get(), v8::Handle<v8::Object>(), isolate);
     v8::Handle<v8::Object> global = frameContext->Global();
+    v8::Handle<v8::Value> overlayHostObj = toV8(m_overlayHost.get(), global, isolate);
     global->Set(v8::String::NewFromUtf8(isolate, "InspectorOverlayHost"), overlayHostObj);
 
 #if OS(WIN)