Merge "Validate ringtone URIs before setting" into udc-dev am: 410fe2f1 am: e808116b

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/24969251



Change-Id: Iac60d9e5d71e6c544ee4b4d2224e3c2bc1cae051
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>