Do not record startup metrics when non-browser UI was displayed

chrome/browser/ui/simple_message_box_internal.cc

Index: chrome/browser/ui/simple_message_box_internal.cc
diff --git a/chrome/browser/ui/simple_message_box_internal.cc b/chrome/browser/ui/simple_message_box_internal.cc
new file mode 100644
index 0000000000000000000000000000000000000000..6ade6e059047f48f74a1ddf0a478f7cfc59e108d
--- /dev/null
+++ b/chrome/browser/ui/simple_message_box_internal.cc
@@ -0,0 +1,13 @@
+// Copyright 2015 The Chromium Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style license that can be
+// found in the LICENSE file.
+
+#include "chrome/browser/ui/simple_message_box_internal.h"
+
+namespace chrome {
+namespace internal {
+
+bool g_should_skip_message_box_for_test = false;
+
+}  // namespace internal
+}  // namespace chrome