Incrementing VERSION to 52.0.2743.30

Cr-Commit-Position: refs/branch-heads/2743@{#228}
Cr-Branched-From: 2b3ae3b8090361f8af5a611712fc1a5ab2de53cb-refs/heads/master@{#394939}
diff --git a/chrome/VERSION b/chrome/VERSION
index 48b960d..9267de8 100644
--- a/chrome/VERSION
+++ b/chrome/VERSION
@@ -1,4 +1,4 @@
 MAJOR=52
 MINOR=0
 BUILD=2743
-PATCH=29
+PATCH=30