The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/2b366b970abadb9d9f05ef314da12973fb831f24

commit 2b366b970abadb9d9f05ef314da12973fb831f24
Author: yuweih <yuweih@chromium.org>
Date: Thu May 18 23:28:42 2017

[CRD iOS] Fix the leaky RemotingClient

Previously RemotingClient was not able to clean up itself after the session
ended due to retain loops.

This CL fixed the retain loops and other thread issues hidden by the fact that
RemotingClient and its resources were not released after the session ends.

BUG= 724228 

Review-Url: https://codereview.chromium.org/2886233003
Cr-Commit-Position: refs/heads/master@{#472965}

[modify] https://crrev.com/2b366b970abadb9d9f05ef314da12973fb831f24/remoting/ios/app/host_view_controller.mm
[modify] https://crrev.com/2b366b970abadb9d9f05ef314da12973fb831f24/remoting/ios/app/remoting_view_controller.mm
[modify] https://crrev.com/2b366b970abadb9d9f05ef314da12973fb831f24/remoting/ios/display/gl_display_handler.mm
[modify] https://crrev.com/2b366b970abadb9d9f05ef314da12973fb831f24/remoting/ios/session/remoting_client.mm
[modify] https://crrev.com/2b366b970abadb9d9f05ef314da12973fb831f24/remoting/ios/session/remoting_client_session_delegate.h