Make V8ValueConverter.FromV8Value behave similarly to JSON.stringify

content/renderer/render_view_impl.cc

Index: content/renderer/render_view_impl.cc
diff --git a/content/renderer/render_view_impl.cc b/content/renderer/render_view_impl.cc
index 6330cb2358999b5a0984759804b04936ce17ba73..cbf46d92c951bc1bbb0cb09a7c7c814210dd6ebe 100644
--- a/content/renderer/render_view_impl.cc
+++ b/content/renderer/render_view_impl.cc
@@ -4229,7 +4229,6 @@ WebKit::WebPlugin* RenderViewImpl::CreatePlugin(
         pepper_module.get(), params, pepper_delegate_.AsWeakPtr());
   }
 
-
 #if defined(USE_AURA) && !defined(OS_WIN)
   return NULL;
 #else
@@ -4254,8 +4253,10 @@ void RenderViewImpl::EvaluateScript(const string16& frame_xpath,
       v8::Context::Scope context_scope(context);
       V8ValueConverterImpl converter;
       converter.SetDateAllowed(true);
-      converter.SetRegexpAllowed(true);
-      list.Set(0, converter.FromV8Value(result, context));
+      converter.SetRegExpAllowed(true);
+      base::Value* result_value = converter.FromV8Value(result, context);
+      list.Set(0, result_value ? result_value :
+                                 base::Value::CreateNullValue());
     } else {
       list.Set(0, Value::CreateNullValue());
     }