[automerger skipped] Merge "Add more javadoc for...

[automerger skipped] Merge "Add more javadoc for requestRawExternalStorageAccess" into sc-dev am: f3223a69 -s ours

am skip reason: skip tag Change-Id I6d805a842874971fbf88fcbecc5661afb176d6ca with SHA-1 5f5ec0f0 is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/frameworks/base/+/14236410

Change-Id: Ia0f2c8903a721f52376bd06738e020cc17cc3101