Update V8 to version 5.2.164.

Summary of changes available at:
https://chromium.googlesource.com/v8/v8/+log/8e49b3ef..9c51453c

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.

TBR=hablich@chromium.org,machenbach@chromium.org,yangguo@chromium.org,vogelheim@chromium.org

Review-Url: https://codereview.chromium.org/1931803002
Cr-Commit-Position: refs/heads/master@{#390344}

DEPS

@@ -43,7 +43,7 @@ vars = {
   # 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': '8e49b3ef63f17f28c1f6ea9f83011f361227350b',
+  'v8_revision': '9c51453ce0a6f1d93b45c2557c7011c8968a4176',
   # 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.