Update V8 to version 5.3.40.

Update V8 to version 5.3.40.

Summary of changes available at:
https://chromium.googlesource.com/v8/v8/+log/cdca1391..c017e4d2

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=tryserver.blink:linux_blink_rel

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

Committed: https://crrev.com/1303a5a26f1f07be8de721a508448358562efe92
Cr-Commit-Position: refs/heads/master@{#395886}

[v8-autoroll, 2016-05-25 11:32:42]

The CQ bit was checked by v8-autoroll@chromium.org

[commit-bot: I haz the power, 2016-05-25 11:32:56]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2011763003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/2011763003/1

[commit-bot: I haz the power, 2016-05-25 14:08:43]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-25 14:09:57]

Description was changed from

==========
Update V8 to version 5.3.40.

Summary of changes available at:
https://chromium.googlesource.com/v8/v8/+log/cdca1391..c017e4d2

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=tryserver.blink:linux_blink_rel

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

to

==========
Update V8 to version 5.3.40.

Summary of changes available at:
https://chromium.googlesource.com/v8/v8/+log/cdca1391..c017e4d2

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=tryserver.blink:linux_blink_rel

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

Committed: https://crrev.com/1303a5a26f1f07be8de721a508448358562efe92
Cr-Commit-Position: refs/heads/master@{#395886}
==========

[commit-bot: I haz the power, 2016-05-25 14:10:02]

Patchset 1 (id:??) landed as
https://crrev.com/1303a5a26f1f07be8de721a508448358562efe92
Cr-Commit-Position: refs/heads/master@{#395886}

[Zhenyao Mo, 2016-05-25 16:15:39]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/2015563002/ by zmo@chromium.org.

The reason for reverting is: crbug.com/614730

From the crash stack, it seems very likely this roll triggers the bug, so revert
to confirm..