Changes to image_to_live to copy stateful partition over

src/platform/init/chromeos_startup

Index: src/platform/init/chromeos_startup
diff --git a/src/platform/init/chromeos_startup b/src/platform/init/chromeos_startup
index 41e1f2c8269bb7b9ee29c2d8997063065ece089c..f12e36b51e96f7f3f5dc9a570a8e715101e08899 100755
--- a/src/platform/init/chromeos_startup
+++ b/src/platform/init/chromeos_startup
@@ -51,6 +51,18 @@ if [ -f "$RESET_FILE" ]; then
   fi
 fi
 
+# Check if we have an update to stateful pending.  This is used for dev_mode.
+VAR_NEW="/mnt/stateful_partition/var_new"
+DEVELOPER_NEW="/mnt/stateful_partition/dev_image_new"
+STATEFUL_UPDATE="/mnt/stateful_partition/.update_available"
+if [ -f "$STATEFUL_UPDATE" ] ; then
+  sudo rm -rf /mnt/stateful_partition/dev_image
+  sudo rm -rf /mnt/stateful_partition/var
+  sudo mv "$DEVELOPER_NEW" /mnt/stateful_partition/dev_image
+  sudo mv "$VAR_NEW" /mnt/stateful_partition/var
+  sudo rm  $STATEFUL_UPDATE
+fi  
+
 # Make sure stateful partition has some basic directories
 mkdir -p -m 0755 /mnt/stateful_partition/home
 mkdir -p -m 0755 /mnt/stateful_partition/etc