The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/5c8b17049172e8885bd608a2dc23759502d84eb2

commit 5c8b17049172e8885bd608a2dc23759502d84eb2
Author: Gauthier Ambard <gambard@chromium.org>
Date: Wed Jan 31 10:47:23 2018

Update the LocationBar container during fullscreen

This CL updates the location bar container, updating its background
color and its height to follow the fullscreen progress.
It also updates BVC so the location bar is always displayed.

Bug:  804731 
Cq-Include-Trybots: master.tryserver.chromium.mac:ios-simulator-cronet;master.tryserver.chromium.mac:ios-simulator-full-configs
Change-Id: I6f5b2a750cf1593c8d4c7f12163a9db90dc34090
Reviewed-on: https://chromium-review.googlesource.com/883283
Reviewed-by: Kurt Horimoto <kkhorimoto@chromium.org>
Reviewed-by: Louis Romero <lpromero@chromium.org>
Commit-Queue: Gauthier Ambard <gambard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#533247}
[modify] https://crrev.com/5c8b17049172e8885bd608a2dc23759502d84eb2/ios/chrome/browser/ui/browser_view_controller.mm
[modify] https://crrev.com/5c8b17049172e8885bd608a2dc23759502d84eb2/ios/chrome/browser/ui/toolbar/adaptive/primary_toolbar_view.h
[modify] https://crrev.com/5c8b17049172e8885bd608a2dc23759502d84eb2/ios/chrome/browser/ui/toolbar/adaptive/primary_toolbar_view.mm
[modify] https://crrev.com/5c8b17049172e8885bd608a2dc23759502d84eb2/ios/chrome/browser/ui/toolbar/adaptive/primary_toolbar_view_controller.mm
[modify] https://crrev.com/5c8b17049172e8885bd608a2dc23759502d84eb2/ios/chrome/browser/ui/toolbar/public/toolbar_controller_constants.h
[modify] https://crrev.com/5c8b17049172e8885bd608a2dc23759502d84eb2/ios/chrome/browser/ui/toolbar/public/toolbar_controller_constants.mm