Merge "Disable Webview Overlay when invisible" into sc-dev am: 94950c3c am: 35ceb388 am: d6d83282

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15116633

Change-Id: Ib64e036062599007e9279254108ee59671c0d3a6