Merge "Clear content from tile when conversation opened in bubble" into sc-dev am: 4c91e055 am: 3cb146f1 am: 41a8beab

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14840469

Change-Id: I7e13fa90f2ebc2fdc5a8f0dd7f3235a38b75de7b