[automerger skipped] Merge "RESTRICT AUTOMERGE Validate TrackedBuffer in onBufferDestroyed" into qt-qpr1-dev am: cf24ad44c4 am: a41f7e30e6 -s ours am: 93afcf00aa -s ours
am skip reason: subject contains skip directive

Change-Id: Idb948e33ea60c72b542dbbe56cf7c9502dec1258