tree b7c95bc8cba71bad9d2a1a710807fd9a93a217a5
parent 66719791a3c3050aa3dc7c771b40a833490717ab
author Jungho Ahn <jhahn@google.com> 1448322156 -0800
committer Jungho Ahn <jhahn@google.com> 1448322156 -0800

mojo/discovery: change Stop() to return error

  Change Stop() API to return error if the handle is not valid.
  This is also helpful to wait until stop() operation actually finishes.

Change-Id: I3293b7e8ad6b32085d61513178b72b0719971465