Merge "Adding const to task constructors" am: 83800601

Original change: https://android-review.googlesource.com/c/platform/system/core/+/2529764



Change-Id: Id1a8a2c96645065b82f1a44c33a427829b292949
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>