Merge "Set placeholder summary for SettingsInjector" into tm-dev am: ae8254a5 am: 415c15d9

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17352243



Change-Id: If5d491b9d1b6f93429e6296abd5f41d1922eec4a
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>