Merge "Revised the OnDragListener and onDragEvent API documentation." am: 629810015f am: b38f3d7744 am: 8ad9969307 am: b085975620

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1907031

Change-Id: I79153a7d2f595919b14a602fe984e55a7d160728