Crop avatar to circle when syncing from Contacts.

This ensures that photos synced to the Android user icon from the
Me Contact, by the ProfileUpdateReceiver, are cropped to a circle.

This matches the behaviour when images are selected using the
avatar picker.

Bug: 256827004
Test: Manual, build & flash, sync photo, observe in lockscreen.
Change-Id: If1abf110b74a3892a5cfb76ee344be79c867feed

src/com/android/settings/users/UserSettings.java

@@ -1681,7 +1681,10 @@ public class UserSettings extends SettingsPreferenceFragment
         }
 
         UserManager um = (UserManager) context.getSystemService(Context.USER_SERVICE);
-        Bitmap icon = BitmapFactory.decodeStream(avatarDataStream);
+        Bitmap decodedIcon = BitmapFactory.decodeStream(avatarDataStream);
+        CircleFramedDrawable drawable = CircleFramedDrawable.getInstance(context, decodedIcon);
+        Bitmap icon = UserIcons.convertToBitmapAtUserIconSize(context.getResources(), drawable);
+
         um.setUserIcon(userId, icon);
         try {
             avatarDataStream.close();