Remove extension group from DOMWrapperWorld.

chrome/renderer/chrome_render_frame_observer.cc

Index: chrome/renderer/chrome_render_frame_observer.cc
diff --git a/chrome/renderer/chrome_render_frame_observer.cc b/chrome/renderer/chrome_render_frame_observer.cc
index 881ff7768c3a775d170b0105fe74a3adfbecba8a..dc649f065d44ad5f2d64c39f1c657cfcb39fb131 100644
--- a/chrome/renderer/chrome_render_frame_observer.cc
+++ b/chrome/renderer/chrome_render_frame_observer.cc
@@ -121,7 +121,7 @@ ChromeRenderFrameObserver::ChromeRenderFrameObserver(
   if (!command_line.HasSwitch(switches::kDisableClientSidePhishingDetection))
     OnSetClientSidePhishingDetection(true);
   translate_helper_ = new translate::TranslateHelper(
-      render_frame, chrome::ISOLATED_WORLD_ID_TRANSLATE, 0,
+      render_frame, chrome::ISOLATED_WORLD_ID_TRANSLATE,
       extensions::kExtensionScheme);
 }