Update action_lid.sh to use new RequestSuspend signal (6 of 7).

Depends on the following change:
- Issue 2701001: Update power manager to support suspend (5 of 7).

BUG=chromium-os:3694
TEST=Emerged to device and tested it with the new power manager change.

Review URL: http://codereview.chromium.org/2626006
diff --git a/action_lid.sh b/action_lid.sh
index 9e6103e..7c66d87 100755
--- a/action_lid.sh
+++ b/action_lid.sh
@@ -12,52 +12,6 @@
   exit 0
 fi
 
-
-# Shutdowns instead of sleeping if no one is logged in.
-if ! test -f /var/run/state/logged-in; then
-  logger "action_lid.sh: lid closed. Shutting down since no one is logged in"
-  shutdown -h now
-  exit 0
-fi
-
-logger "action_lid.sh: lid closed. Going to suspend-to-RAM state"
-
-# On lid close:
-# - locks the screen
-export HOME=/home/chronos
-/usr/bin/xscreensaver-command -l
-
-# - logs the time going to suspend (no-op if no RTC).
-cp /sys/class/rtc/rtc0/since_epoch /var/log/metrics/suspend-to-ram-time \
-  2> /dev/null || true
-
-# - announces the event
+logger "action_lid.sh: lid closed. Requesting suspend."
 /usr/bin/dbus-send --type=signal --system / \
-  org.chromium.Power.Manager.PowerStateChanged string:mem
-
-# - sleeps for a bit to give the window manager time to draw the xscreensaver
-#   window to the screen -- see http://crosbug.com/2250.
-# TODO: Remove this hack once we have a better solution in place that adds
-# some coordination between the screen locker and the window manager.
-sleep 0.5
-
-# - suspends the cryptohome device
-#CRYPTOHOME=/dev/mapper/cryptohome
-#/usr/bin/test -b $CRYPTOHOME && /sbin/dmsetup suspend $CRYPTOHOME
-
-# - suspends to ram
-echo -n mem > /sys/power/state
-
-# On lid open:
-# - has it such that you don't have to press a key to display lock screen
-/usr/bin/xscreensaver-command -deactivate
-
-# - announces the event
-/usr/bin/dbus-send --type=signal --system / \
-  org.chromium.Power.Manager.PowerStateChanged string:on &
-
-# - sends UMA metrics on resume
-/usr/bin/send_metrics_on_resume
-
-# - resumes cryptohome device
-#/usr/bin/test -b $CRYPTOHOME && /sbin/dmsetup resume $CRYPTOHOME
+  org.chromium.PowerManager.RequestSuspend