Add a screen to migrate filesystem encryption from eCryptfs to ext4 crypto.

chromeos/chromeos_switches.cc

Index: chromeos/chromeos_switches.cc
diff --git a/chromeos/chromeos_switches.cc b/chromeos/chromeos_switches.cc
index d41ce0022978e2c31443edced421e8c538c56b45..c6e285bdaa6d9cc18121f078edf169d55d7afab4 100644
--- a/chromeos/chromeos_switches.cc
+++ b/chromeos/chromeos_switches.cc
@@ -458,6 +458,9 @@ const char kWakeOnWifiPacket[] = "wake-on-wifi-packet";
 // Force system compositor mode when set.
 const char kForceSystemCompositorMode[] = "force-system-compositor-mode";
 
+// Enables testing for encryption migration UI.
+const char kTestEncryptionMigrationUI[] = "test-encryption-migration-ui";
+
 bool WakeOnWifiEnabled() {
   return !base::CommandLine::ForCurrentProcess()->HasSwitch(kDisableWakeOnWifi);
 }