Move canvas WallpaperEngine to droidFood am: eca2762da7

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/20271965

Change-Id: Ic7e5b1a8ca1329a9a16578a61a286b55c47a9c96
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>