Merge "Create an empty String8 to cause the first allocation" am: 896cdca9...

Merge "Create an empty String8 to cause the first allocation" am: 896cdca9 am: 908b95cf am: 6972d3c2 am: 687d6f24

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/2186419



Change-Id: I325d8d525fc74c3338f2e596a90b06fb2b138add
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>