Squashed 'notification_bundle_subtree/' content from commit d3a12da

git-subtree-dir: notification_bundle_subtree
git-subtree-split: d3a12da57cc28eb137ab0e1738810a367b61fa2a
Merge commit 'c83237817ab320b3bd17920839ac27f5a96f8174' as 'notification_bundle_subtree'