Move more utility functions to arc_util.

chrome/browser/chromeos/arc/arc_util.cc

Index: chrome/browser/chromeos/arc/arc_util.cc
diff --git a/chrome/browser/chromeos/arc/arc_util.cc b/chrome/browser/chromeos/arc/arc_util.cc
new file mode 100644
index 0000000000000000000000000000000000000000..1c7489a9a3339076d11891137cbdf7caaf0108a8
--- /dev/null
+++ b/chrome/browser/chromeos/arc/arc_util.cc
@@ -0,0 +1,71 @@
+// Copyright 2017 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/chromeos/arc/arc_util.h"
+
+#include "base/logging.h"
+#include "chrome/browser/chromeos/login/user_flow.h"
+#include "chrome/browser/chromeos/login/users/chrome_user_manager.h"
+#include "chrome/browser/chromeos/profiles/profile_helper.h"
+#include "chrome/browser/profiles/profile.h"
+#include "components/arc/arc_util.h"
+#include "components/user_manager/user.h"
+#include "components/user_manager/user_manager.h"
+
+namespace arc {
+namespace util {
+
+bool IsArcAllowedForProfile(const Profile* profile) {
+  if (!IsArcEnabled()) {
+    VLOG(1) << "Arc is not enabled.";

[Luis Héctor Chávez, 2017/01/19 18:09:15]

nit: s/Arc/ARC/g

[hidehiko, 2017/01/24 17:46:11]

Done.

+    return false;
+  }
+
+  if (!profile) {
+    VLOG(1) << "ARC is not supported for systems without profile.";
+    return false;
+  }
+
+  if (!chromeos::ProfileHelper::IsPrimaryProfile(profile)) {
+    VLOG(1) << "Non-primary users are not supported in ARC.";
+    return false;
+  }
+
+  // IsPrimaryProfile can return true for an incognito profile corresponding

[Yusuke Sato, 2017/01/19 22:39:31]

This type of comment looks useful. Can you add comments to L47, 54, and 61 too?
(especially the last two.)

[hidehiko, 2017/01/24 17:46:11]

Added to L54. However, as for L47 and L61, I'm not very sure about its
background because I neither write it nor review it, and I just moved the code
here.
So, let me add TODO for its archaeology.

+  // to the primary profile, but ARC does not support it.
+  if (profile->IsOffTheRecord()) {
+    VLOG(1) << "Incognito profile is not supported in ARC.";
+    return false;
+  }
+
+  if (profile->IsLegacySupervised()) {
+    VLOG(1) << "Supervised users are not supported in ARC.";
+    return false;
+  }
+
+  const user_manager::User* user =
+      chromeos::ProfileHelper::Get()->GetUserByProfile(profile);
+  if ((!user || !user->HasGaiaAccount()) && !IsArcKioskMode()) {
+    VLOG(1) << "Users without GAIA accounts are not supported in ARC.";
+    return false;
+  }
+
+  chromeos::UserFlow* user_flow =
+      chromeos::ChromeUserManager::Get()->GetUserFlow(user->GetAccountId());
+  if (!user_flow || !user_flow->CanStartArc()) {
+    VLOG(1) << "ARC is not allowed in the current user flow.";
+    return false;
+  }
+
+  if (user_manager::UserManager::Get()
+          ->IsCurrentUserCryptohomeDataEphemeral()) {
+    VLOG(1) << "Users with ephemeral data are not supported in Arc.";
+    return false;
+  }
+
+  return true;
+}
+
+}  // namespace util
+}  // namespace arc