Incrementing VERSION to 68.0.3440.10

TBR=mmoss@chromium.org

Change-Id: Id78aabd02ae7b139c3fe42edba2fb82d9c976a4b
Reviewed-on: https://chromium-review.googlesource.com/1079769
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/branch-heads/3440@{#55}
Cr-Branched-From: 010ddcf-refs/heads/master@{#561733}

chrome/VERSION

@@ -1,4 +1,4 @@
 MAJOR=68
 MINOR=0
 BUILD=3440
-PATCH=9
+PATCH=10