Merge "Disable wtf dropbox entries by default." into udc-dev am: bf1e1425

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21606059



Change-Id: I5d301c7628e948177772febd601adda00e1adc85
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>