Incrementing VERSION to 69.0.3497.2

TBR=mmoss@chromium.org

Change-Id: I32c236ea5a58f3c08d1a3822194fc5e899a4fea8
Reviewed-on: https://chromium-review.googlesource.com/1145125
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/branch-heads/3497@{#3}
Cr-Branched-From: 271eaf5-refs/heads/master@{#576753}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=69
 MINOR=0
 BUILD=3497
-PATCH=1
+PATCH=2