[automerger skipped] Merge "Create getSystemSelectionChannel API" am: 138e2db12a am: cd740a8f7e am: 8dc2043a2f -s ours

am skip reason: Change-Id I2d80284b92414f403af977cbe193766eac08a6e0 with SHA-1 26144d4c21 is in history

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1503895

Change-Id: I06ca0d78fde02feb49c1236a227cd13f0e4166b0