Merge "Validate URI-based shortcut icon at creation time." into rvc-dev am: bdcf6b3c0f am: bf3e2fd99a am: 37fbb483b2 am: ac61b7d030

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/24046929

Change-Id: I16836d34e86d5eb3b42f78316c54d719ddb416ba
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>