Update V8 to version 7.3.370.

Summary of changes available at:
https://chromium.googlesource.com/v8/v8/+log/a663e359..2bc360ca

Please follow these instructions for assigning/CC'ing issues:
https://github.com/v8/v8/wiki/Triaging%20issues

Please close rolling in case of a roll revert:
https://v8-roll.appspot.com/
This only works with a Google account.

CQ_INCLUDE_TRYBOTS=luci.chromium.try:linux-blink-rel;luci.chromium.try:linux_optional_gpu_tests_rel;luci.chromium.try:mac_optional_gpu_tests_rel;luci.chromium.try:win_optional_gpu_tests_rel;luci.chromium.try:android_optional_gpu_tests_rel

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Change-Id: If5d1b71cd1f541b5fa80dff7b496f4ab21e99e47
Reviewed-on: https://chromium-review.googlesource.com/c/1406935
Reviewed-by: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Commit-Queue: v8-ci-autoroll-builder <v8-ci-autoroll-builder@chops-service-accounts.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#622034}
diff --git a/DEPS b/DEPS
index 5f4acdc..4cc35a9 100644
--- a/DEPS
+++ b/DEPS
@@ -125,7 +125,7 @@
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling V8
   # and whatever else without interference from each other.
-  'v8_revision': 'a663e359c3f595f3305c02565b48c1a63fee5809',
+  'v8_revision': '2bc360cae0a8580f36811b34dbf55d1da8afbf5b',
   # Three lines of non-changing comments so that
   # the commit queue can handle CLs rolling swarming_client
   # and whatever else without interference from each other.