Force encryption migration if the device supports ARC.

chrome/browser/chromeos/login/screens/encryption_migration_screen.cc

Index: chrome/browser/chromeos/login/screens/encryption_migration_screen.cc
diff --git a/chrome/browser/chromeos/login/screens/encryption_migration_screen.cc b/chrome/browser/chromeos/login/screens/encryption_migration_screen.cc
index d5439acc23597f32147549cbeca24613926665f9..1c34de636dae338576cf11c26e7f4e9ba99e5a26 100644
--- a/chrome/browser/chromeos/login/screens/encryption_migration_screen.cc
+++ b/chrome/browser/chromeos/login/screens/encryption_migration_screen.cc
@@ -4,6 +4,8 @@
 
 #include "chrome/browser/chromeos/login/screens/encryption_migration_screen.h"
 
+#include <utility>
+
 #include "base/logging.h"
 #include "chrome/browser/chromeos/login/screens/base_screen_delegate.h"
 #include "chrome/browser/chromeos/login/wizard_controller.h"
@@ -51,4 +53,10 @@ void EncryptionMigrationScreen::SetUserContext(
   view_->SetUserContext(user_context);
 }
 
+void EncryptionMigrationScreen::SetContinueLoginCallback(
+    ContinueLoginCallback callback) {
+  DCHECK(view_);
+  view_->SetContinueLoginCallback(std::move(callback));
+}
+
 }  // namespace chromeos