Nukes ViewManager arg from ViewManagerDelegate::OnEmbed

sky/viewer/document_view.cc

Index: sky/viewer/document_view.cc
diff --git a/sky/viewer/document_view.cc b/sky/viewer/document_view.cc
index 47ab3e3540e1815ccd4885ad32c60d1d0f8266ab..095cfeff34844b82f55a4014827f843c1f15c051 100644
--- a/sky/viewer/document_view.cc
+++ b/sky/viewer/document_view.cc
@@ -98,11 +98,9 @@ base::WeakPtr<DocumentView> DocumentView::GetWeakPtr() {
 }
 
 void DocumentView::OnEmbed(
-    mojo::ViewManager* view_manager,
     mojo::View* root,
     mojo::ServiceProviderImpl* exported_services,
     scoped_ptr<mojo::ServiceProvider> imported_services) {
-
   root_ = root;
   imported_services_ = imported_services.Pass();
   navigator_host_.set_service_provider(imported_services_.get());