Added check to ensure LID is in a closed state before proceeding

src/platform/acpi/action_lid.sh

 #!/bin/sh
 
 # Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 # Use of this source code is governed by a BSD-style license that can be
 # found in the LICENSE file.
 
 # Shutdown instead of sleeping if no one is logged in
 if ! test -f /var/run/state/logged-in; then
   shutdown -h now
   exit 0
 fi
 
+# Check whether the lid is closed before proceeding
+grep -q open /proc/acpi/button/lid/*/state
+if [ $? = 0 ]; then
+  exit 0
+fi
+
 # On lid close:
 # - lock the screen
 export HOME=/home/chronos
 /usr/bin/xscreensaver-command -l
 
 # - suspend the cryptohome device
 #CRYPTOHOME=/dev/mapper/cryptohome
 #/usr/bin/test -b $CRYPTOHOME && /sbin/dmsetup suspend $CRYPTOHOME
 
 # - suspend 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
 
 # - resume cryptohome device
 #/usr/bin/test -b $CRYPTOHOME && /sbin/dmsetup resume $CRYPTOHOME