Set crostini backup and restore flag enabled by default for M75

Bug: 929733

Change-Id: Ia722a02acb117381e71ee779b843eb9b56ad686d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1512980
Reviewed-by: Nicholas Verne <nverne@chromium.org>
Commit-Queue: Joel Hockey <joelhockey@chromium.org>
Cr-Commit-Position: refs/heads/master@{#639738}
diff --git a/chromeos/constants/chromeos_features.cc b/chromeos/constants/chromeos_features.cc
index f9ab1e4..6b22cc56 100644
--- a/chromeos/constants/chromeos_features.cc
+++ b/chromeos/constants/chromeos_features.cc
@@ -15,7 +15,7 @@
 
 // Enables or disables Crostini Backup.
 const base::Feature kCrostiniBackup{"CrostiniBackup",
-                                    base::FEATURE_DISABLED_BY_DEFAULT};
+                                    base::FEATURE_ENABLED_BY_DEFAULT};
 
 // Enables or disables Crostini support for usb mounting.
 const base::Feature kCrostiniUsbSupport{"CrostiniUsbSupport",