Merge "Use wallpaper colors for widgets in wallpaper change preview" into sc-dev am: 6819202b65

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Launcher3/+/15331418

Change-Id: Ieaf2c46fc94c4b6dcb408bb78f6d4b59d07382d8