Updating trunk VERSION from 3777.0 to 3778.0

# This is an automated release commit.
# Do not revert without consulting chrome-pmo@google.com.
NOAUTOREVERT=true
TBR=benmason@chromium.org

Change-Id: I172c5f8254befc2a536012a2d16da435ebfa8d60
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1585090
Reviewed-by: chrome-release-bot@chromium.org <chrome-release-bot@chromium.org>
Cr-Commit-Position: refs/heads/master@{#654335}
diff --git a/chrome/VERSION b/chrome/VERSION
index ae4709b..08f391c 100644
--- a/chrome/VERSION
+++ b/chrome/VERSION
@@ -1,4 +1,4 @@
 MAJOR=76
 MINOR=0
-BUILD=3777
+BUILD=3778
 PATCH=0