Merge "Load clipboard image thumbnail in background" into tm-qpr-dev am: a4d84996 am: e3ce7ef2 am: 9a0d16b7 am: 1bac7f0b

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/21675231



Change-Id: Iddfc1fc63c3ec3372a56d16dae4c9572181d9e7b
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>