The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d

commit ddce5e3b48bc9388e4e335ab61ca61da3c82d40d
Author: Yuwei Huang <yuweih@chromium.org>
Date: Thu Jul 13 22:37:59 2017

[CRD iOS] Adding the first launch view

Adding a first launch view to be shown when the user is not signed in.
The view will also kick in if the user signs out.

Bug:  741842 
Change-Id: Ib80df93df428f9923834573b19f10cc4f973f42e
Reviewed-on: https://chromium-review.googlesource.com/568858
Commit-Queue: Yuwei Huang <yuweih@chromium.org>
Reviewed-by: Scott Nichols <nicholss@chromium.org>
Cr-Commit-Position: refs/heads/master@{#486496}
[modify] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/BUILD.gn
[modify] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/app_delegate.h
[modify] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/app_delegate.mm
[add] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/first_launch_view_controller.h
[add] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/first_launch_view_controller.mm
[add] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/first_launch_view_presenter.h
[add] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/first_launch_view_presenter.mm
[modify] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/remoting_theme.h
[modify] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/remoting_theme.mm
[modify] https://crrev.com/ddce5e3b48bc9388e4e335ab61ca61da3c82d40d/remoting/ios/app/remoting_view_controller.mm

Verified in 63.0.3220.0