Incrementing VERSION to 66.0.3359.188

TBR=dimu@chromium.org

Change-Id: Ic59b7faa5aa7f9e53c81d53855006e89a1eb6b9b
Reviewed-on: https://chromium-review.googlesource.com/1064919
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/branch-heads/3359@{#835}
Cr-Branched-From: 66afc5e5d10127546cc4b98b9117aff588b5e66b-refs/heads/master@{#540276}
diff --git a/chrome/VERSION b/chrome/VERSION
index 9319329..3fcaa34 100644
--- a/chrome/VERSION
+++ b/chrome/VERSION
@@ -1,4 +1,4 @@
 MAJOR=66
 MINOR=0
 BUILD=3359
-PATCH=187
+PATCH=188