Adding flag com.android.window.flags.predictive_back_three_button_nav to trunk_staging.

This change was automatically created by advancing the Gantry workflow at:
https://releasetracker.partner.android.com/changes/3oitdvi000001?build_unique_id=ComAndroidWindowFlagsPredictiveBackThreeButtonNavLaunch-platform
Do not edit this file manually or revert this change - use the Gantry workflow to manage the state of this flag.

Bug: 373544911
Change-Id: I9e49adcd5cd7cc1bc4d59ae475a3b1aa90d6121f
Flag: com.android.window.flags.predictive_back_three_button_nav
Ignore-AOSP-First: AConfig change for future AOSP release
1 file changed