Incrementing VERSION to 45.0.2421.1

Cr-Commit-Position: refs/branch-heads/2421@{#1}
Cr-Branched-From: b7dbd05e09a2da8d450db8d82db983bc8e47374c-refs/heads/master@{#332501}
diff --git a/chrome/VERSION b/chrome/VERSION
index 4254ecb..31a99211 100644
--- a/chrome/VERSION
+++ b/chrome/VERSION
@@ -1,4 +1,4 @@
 MAJOR=45
 MINOR=0
 BUILD=2421
-PATCH=0
+PATCH=1