Crostini backup enabled for M78

Change-Id: I41d7bd3a3b1225ad0aba49f75e3b0113f7f43ab8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1757416
Auto-Submit: Joel Hockey <joelhockey@chromium.org>
Reviewed-by: Julian Watson <juwa@google.com>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#689203}

chromeos/constants/chromeos_features.cc

@@ -50,7 +50,7 @@ const base::Feature kCameraSystemWebApp{"CameraSystemWebApp",
 
 // Enables or disables Crostini Backup.
 const base::Feature kCrostiniBackup{"CrostiniBackup",
-                                    base::FEATURE_DISABLED_BY_DEFAULT};
+                                    base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables or disables Crostini GPU support.
 const base::Feature kCrostiniGpuSupport{"CrostiniGpuSupport",