[backport] Address integer overflow in sqlite3MulInt64.

[backport] Address integer overflow in sqlite3MulInt64.

SQLite check-in http://www.sqlite.org/src/info/db3ebd7c52cfc5fc

"Improved implementation of 64-bit signed integer multiply that
correctly detects overflow (and promotes to floating-point) in some
corner cases. Fix for ticket [1ec41379c9c1e400]"

http://www.sqlite.org/src/info/1ec41379c9c1e400"

BUG=601727
Committed: https://crrev.com/1459ddc66690416d9538693972ceb82c4772fc01
Cr-Commit-Position: refs/heads/master@{#421522}

[Scott Hess - ex-Googler, 2016-09-23 17:34:08]

The CQ bit was checked by shess@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2016-09-23 17:34:51]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[Scott Hess - ex-Googler, 2016-09-23 17:35:49]

shess@chromium.org changed reviewers:
+ mmoroz@chromium.org

[commit-bot: I haz the power, 2016-09-23 17:54:35]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2016-09-23 17:54:36]

Dry run: Try jobs failed on following builders:
  linux_chromium_rel_ng on master.tryserver.chromium.linux (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium_...)

[mmoroz, 2016-09-28 10:45:47]

LGTM

sorry for slow response (OOO) and thanks for porting the fix!

[Scott Hess - ex-Googler, 2016-09-28 14:34:07]

The CQ bit was checked by shess@chromium.org

[commit-bot: I haz the power, 2016-09-28 14:34:18]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2016-09-28 15:22:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-09-28 15:24:26]

Description was changed from

==========
[backport] Address integer overflow in sqlite3MulInt64.

SQLite check-in http://www.sqlite.org/src/info/db3ebd7c52cfc5fc

"Improved implementation of 64-bit signed integer multiply that
correctly detects overflow (and promotes to floating-point) in some
corner cases. Fix for ticket [1ec41379c9c1e400]"

http://www.sqlite.org/src/info/1ec41379c9c1e400"

BUG=601727
==========

to

==========
[backport] Address integer overflow in sqlite3MulInt64.

SQLite check-in http://www.sqlite.org/src/info/db3ebd7c52cfc5fc

"Improved implementation of 64-bit signed integer multiply that
correctly detects overflow (and promotes to floating-point) in some
corner cases. Fix for ticket [1ec41379c9c1e400]"

http://www.sqlite.org/src/info/1ec41379c9c1e400"

BUG=601727

Committed: https://crrev.com/1459ddc66690416d9538693972ceb82c4772fc01
Cr-Commit-Position: refs/heads/master@{#421522}
==========

[commit-bot: I haz the power, 2016-09-28 15:24:27]

Patchset 1 (id:??) landed as
https://crrev.com/1459ddc66690416d9538693972ceb82c4772fc01
Cr-Commit-Position: refs/heads/master@{#421522}