Merge "Clear content from tile when conversation opened in bubble" into sc-dev...

Merge "Clear content from tile when conversation opened in bubble" into sc-dev am: 4c91e055 am: 2d826c9b am: a9973ac6

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

Change-Id: I2d8e318745da36e891119f5f7e7e149389d41d69