Merge "Migrate from android::String isEmpty to empty" into aosp-main-future am: dcf8afe15c am: 74ad2ac9a6

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/native/+/24605487

Change-Id: I42c11e2026d06579bcd1a4e18b85c8cfd73bd732
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>