Add an unnecessary .Pass() in view.cc to try to placate MSVS.

mojo/services/view_manager/public/cpp/lib/view.cc

Index: mojo/services/view_manager/public/cpp/lib/view.cc
diff --git a/mojo/services/view_manager/public/cpp/lib/view.cc b/mojo/services/view_manager/public/cpp/lib/view.cc
index f7e77844ce9cfbd191051b8594da239aa3b71cce..4a7007220e87f2f1385d6e31851af60b2863cc7d 100644
--- a/mojo/services/view_manager/public/cpp/lib/view.cc
+++ b/mojo/services/view_manager/public/cpp/lib/view.cc
@@ -387,10 +387,13 @@ namespace {
 ViewportMetricsPtr CreateEmptyViewportMetrics() {
   ViewportMetricsPtr metrics = ViewportMetrics::New();
   metrics->size = Size::New();
-  return metrics;
-}
+  // TODO(vtl): The |.Pass()| below is only needed due to an MSVS bug; remove it
+  // once that's fixed.
+  return metrics.Pass();
 }
 
+}  // namespace
+
 View::View()
     : manager_(NULL),
       id_(static_cast<Id>(-1)),