Disabled ARC for ephemeral users.

chrome/browser/chromeos/arc/arc_auth_service.cc

 // 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/chromeos/arc/arc_auth_service.h"
 
 #include <utility>
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
@@ skipping 212 matching lines @@
   Shutdown();
 
   user_manager::User const* const user =
       chromeos::ProfileHelper::Get()->GetUserByProfile(profile);
   if (profile->IsLegacySupervised() || !user->HasGaiaAccount()) {
     VLOG(2) << "Supervised users and users without GAIA accounts are not "
                "supported in Arc.";
     return;
   }
 
+  if (user_manager::UserManager::Get()
+          ->IsCurrentUserCryptohomeDataEphemeral()) {
+    VLOG(2) << "Users with ephemeral data are not supported in Arc.";
+    return;
+  }
+
   profile_ = profile;
   PrefServiceSyncableFromProfile(profile_)->AddSyncedPrefObserver(
       prefs::kArcEnabled, this);
 
   // Reuse storage used in ARC OptIn platform app.
   const std::string site_url =
       base::StringPrintf("%s://%s/persist?%s", content::kGuestScheme,
                          kArcSupportExtensionId, kArcSupportStorageId);
   storage_partition_ = content::BrowserContext::GetStoragePartitionForSite(
       profile_, GURL(site_url));
@@ skipping 292 matching lines @@
       return os << kStateFetchingCode;
     case ArcAuthService::State::ACTIVE:
       return os << kStateActive;
     default:
       NOTREACHED();
       return os;
   }
 }
 
 }  // namespace arc