Merge "Count the number of dropped events due to rate limiting and attach that...

Merge "Count the number of dropped events due to rate limiting and attach that number to the header of the dropbox entry." into tm-dev am: 48ecaf9d am: ba8ea9ba am: 8be10f58 am: 8fac7be5

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/17619726



Change-Id: Idbcaa3c560e5fb12a49f2be9d4f1ef5de94d9d44
Ignore-AOSP-First: this is an automerge
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>