Force encryption migration if the device supports ARC.

chromeos/cryptohome/homedir_methods.cc

 // Copyright 2014 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 "chromeos/cryptohome/homedir_methods.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 206 matching lines @@
 
     if (request.ephemeral)
       request_proto.set_require_ephemeral(true);
 
     if (!request.create_keys.empty()) {
       CreateRequest* create = request_proto.mutable_create();
       for (size_t i = 0; i < request.create_keys.size(); ++i)
         FillKeyProtobuf(request.create_keys[i], create->add_keys());
     }
 
+    if (request.force_dircrypto_if_available)
+      request_proto.set_force_dircrypto_if_available(true);
+
     DBusThreadManager::Get()->GetCryptohomeClient()->MountEx(
         id, auth_proto, request_proto,
         base::Bind(&HomedirMethodsImpl::OnMountExCallback,
                    weak_ptr_factory_.GetWeakPtr(), callback));
   }
 
   void AddKeyEx(const Identification& id,
                 const Authorization& auth,
                 const KeyDefinition& new_key,
                 bool clobber_if_exists,
@@ skipping 274 matching lines @@
   }
   delete g_homedir_methods;
   g_homedir_methods = NULL;
   VLOG(1) << "HomedirMethods Shutdown completed";
 }
 
 // static
 HomedirMethods* HomedirMethods::GetInstance() { return g_homedir_methods; }
 
 }  // namespace cryptohome