Updating trunk VERSION from 2158.0 to 2159.0

Cr-Commit-Position: refs/heads/master@{#294767}

chrome/VERSION

diff --git a/chrome/VERSION b/chrome/VERSION
index 602629d..eb68f5d 100644
--- a/chrome/VERSION
+++ b/chrome/VERSION
@@ -1,4 +1,4 @@
 MAJOR=39
 MINOR=0
-BUILD=2158
+BUILD=2159
 PATCH=0