GitLab

This CL converts all uses of IdleManager interface
as below,

  - Convert BindingSet to ReceiverSet
  - Convert IdleManagerRequest to
    PendingReceiver<IdleManager>

Bug: 955171
Change-Id: I89f1a325b0e3290c1fdb36d5bc92389c8716e546
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1932139Reviewed-by: Ayu Ishii <ayui@chromium.org>
Reviewed-by: Dave Tapuska <dtapuska@chromium.org>
Commit-Queue: Dave Tapuska <dtapuska@chromium.org>
Cr-Commit-Position: refs/heads/master@{#719360}