Automatic: lumpy-release - Updating to a new version number from 2046.156.0

Change-Id: I2da095c1e7f35ff898f33e5ebfe468be8fdb6179
diff --git a/chromeos/config/chromeos_version.sh b/chromeos/config/chromeos_version.sh
index b95b6a0..1227669 100755
--- a/chromeos/config/chromeos_version.sh
+++ b/chromeos/config/chromeos_version.sh
@@ -19,7 +19,7 @@
 # Release Branch number.
 # Increment by 1 for every release build on a branch.
 # Reset to 0 when increasing release build number.
-export CHROMEOS_BRANCH=156
+export CHROMEOS_BRANCH=157
 
 # Patch number.
 # Increment by 1 in case a non-scheduled branch release build is necessary.