API Review: InputConnection

This CL does nothing but rename some L API candidates
in InputConnection class, as per requested.

- requestUpdateCursorAnchorInfo()
  -> requestCursorUpdates()
- REQUEST_UPDATE_CURSOR_ANCHOR_INFO_IMMEDIATE
  -> CURSOR_UPDATE_IMMEDIATE
- REQUEST_UPDATE_CURSOR_ANCHOR_INFO_MONITOR
  -> CURSOR_UPDATE_MONITOR

BUG: 17320996
Change-Id: I772c48ff18918e48a81e807b48ff907614485c09