Merge "Removed reference to developer guide from class description. Added some missing parameter and return descriptions." am: 01b57ef4f6 am: ba6491183d am: d6d24e3030

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1922957

Change-Id: I4591176412358244b10b015a6b3be5b564d4a585