Chrome Version       : 57.0.2987.11
OS Version: 9202.7.0
URLs (if applicable) :
Other browsers tested:
  Add OK or FAIL after other browsers where you have tested this issue:
     Safari 5:
  Firefox 4.x:
     IE 7/8/9:

What steps will reproduce the problem?
1. Press Search+L
2.
3.

What is the expected result?
Screen locks

What happens instead of that?
Screen doesn't lock


Please provide any additional information below. Attach a screenshot if
possible.

UserAgentString: Mozilla/5.0 (X11; CrOS x86_64 9202.7.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.11 Safari/537.36

==

Google Chrome	57.0.2987.11 (Official Build) dev (64-bit)
Revision	0
Platform	9202.7.0 (Official Build) dev-channel panther
JavaScript	V8 5.7.492.11
Flash	24.0.0.207 /opt/google/chrome/pepper/libpepflashplayer.so
User Agent	Mozilla/5.0 (X11; CrOS x86_64 9202.7.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/57.0.2987.11 Safari/537.36
Command Line	/opt/google/chrome/chrome --ppapi-flash-path=/opt/google/chrome/pepper/libpepflashplayer.so --ppapi-flash-version=24.0.0.207 --ui-prioritize-in-gpu-process --use-gl=egl --gpu-sandbox-failures-fatal=yes --enable-logging --log-level=1 --use-cras --enable-wayland-server --user-data-dir=/home/chronos --max-unused-resource-memory-usage-percentage=5 --login-profile=user --aura-legacy-power-button --default-wallpaper-large=/usr/share/chromeos-assets/wallpaper/oem_large.jpg --default-wallpaper-small=/usr/share/chromeos-assets/wallpaper/oem_small.jpg --default-wallpaper-is-oem --guest-wallpaper-large=/usr/share/chromeos-assets/wallpaper/guest_large.jpg --guest-wallpaper-small=/usr/share/chromeos-assets/wallpaper/guest_small.jpg --enable-prefixed-encrypted-media --enable-consumer-kiosk --enterprise-enrollment-initial-modulus=15 --enterprise-enrollment-modulus-limit=19 --login-manager --first-exec-after-boot --vmodule=screen_locker=2,webui_screen_locker=2,lock_state_controller=2,webui_login_view=2,power_button_observer=2,*/ui/display/manager/chromeos/*=1,*/ash/display/*=1,*/ui/ozone/*=1,*zygote*=1,*plugin*=2,auto_enrollment_controller=1,*chromeos/login/*=1
Executable Path	/opt/google/chrome/chrome
Profile Path	/home/chronos/u-b7dc11a14b11d57882b3e5c804f8949ce755ce5e
Variations	6a89113b-a7aa8ed
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