Merge "Guarding against null pointer exception when setting view structure...

Merge "Guarding against null pointer exception when setting view structure info for content capture" into sc-dev am: 59fe064d am: 776e23f3

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15067633

Change-Id: If8615558338297cf93076d1a78d2337dc98c7e09