Merge "Fix missing exported=true in manifest." into sc-dev am: 299c0567 am: dc6b11e2 am: 620997c4

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/15407912

Change-Id: I845981aeabc21336a235cca53061b47efde5f387