1 files changed, 49 insertions, 0 deletions
diff --git a/chromium/chrome/browser/signin/signin_promo_util.cc b/chromium/chrome/browser/signin/signin_promo_util.cc
new file mode 100644
index 00000000000..4497bbf6b72
--- /dev/null
+++ b/chromium/chrome/browser/signin/signin_promo_util.cc
@@ -0,0 +1,49 @@
+// Copyright 2016 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/signin/signin_promo_util.h"
+
+#include "build/chromeos_buildflags.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/signin/identity_manager_factory.h"
+#include "components/prefs/pref_service.h"
+#include "components/signin/public/base/signin_pref_names.h"
+#include "components/signin/public/identity_manager/identity_manager.h"
+#include "components/signin/public/identity_manager/primary_account_mutator.h"
+#include "net/base/network_change_notifier.h"
+
+namespace signin {
+
+bool ShouldShowPromo(Profile* profile) {
+#if BUILDFLAG(IS_CHROMEOS_ASH)
+  // There's no need to show the sign in promo on cros since cros users are
+  // already logged in.
+  return false;
+#else
+
+  // Don't bother if we don't have any kind of network connection.
+  if (net::NetworkChangeNotifier::IsOffline())
+    return false;
+
+  // Consider original profile even if an off-the-record profile was
+  // passed to this method as sign-in state is only defined for the
+  // primary profile.
+  Profile* original_profile = profile->GetOriginalProfile();
+
+  // Don't show for supervised child profiles.
+  if (original_profile->IsChild())
+    return false;
+
+  // Don't show if sign-in is not allowed.
+  if (!original_profile->GetPrefs()->GetBoolean(prefs::kSigninAllowed))
+    return false;
+
+  // Display the signin promo if the user is not signed in.
+  signin::IdentityManager* identity_manager =
+      IdentityManagerFactory::GetForProfile(original_profile);
+  return !identity_manager->HasPrimaryAccount(signin::ConsentLevel::kSync);
+#endif
+}
+
+}  // namespace signin