Update allocPageErrorCode only when mmap fails.

Update allocPageErrorCode only when mmap fails.

cluster-fuzz:
https://cluster-fuzz.appspot.com/testcase?key=5822916706435072

If mmap fails, blink will immediately crash. So updating allocPageErrorCode when mmap fails is enough to avoid data race.

BUG=595631
Committed: https://crrev.com/513bc4519eaf958471a4d169fe3169addfe2f5b3
Cr-Commit-Position: refs/heads/master@{#383052}

[tasak, 2016-03-23 11:20:51]

Description was changed from

==========
Update allocPageErrorCode only when mmap fails.

BUG=595631
==========

to

==========
Update allocPageErrorCode only when mmap fails.

cluster-fuzz:
https://cluster-fuzz.appspot.com/testcase?key=5822916706435072

If mmap fails, blink will immediately crash. So updating allocPageErrorCode when
mmap fails is enough to avoid data race.

BUG=595631
==========

[tasak, 2016-03-23 11:23:35]

tasak@google.com changed reviewers:
+ haraken@chromium.org, tzik@chromium.org

[tasak, 2016-03-23 11:23:35]

Would you review this CL?

[haraken, 2016-03-23 11:24:21]

LGTM

[tzik, 2016-03-23 23:17:27]

lgtm

[tasak, 2016-03-24 09:31:59]

The CQ bit was checked by tasak@google.com

[commit-bot: I haz the power, 2016-03-24 09:32:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1820413003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1820413003/1

[commit-bot: I haz the power, 2016-03-24 11:09:00]

Description was changed from

==========
Update allocPageErrorCode only when mmap fails.

cluster-fuzz:
https://cluster-fuzz.appspot.com/testcase?key=5822916706435072

If mmap fails, blink will immediately crash. So updating allocPageErrorCode when
mmap fails is enough to avoid data race.

BUG=595631
==========

to

==========
Update allocPageErrorCode only when mmap fails.

cluster-fuzz:
https://cluster-fuzz.appspot.com/testcase?key=5822916706435072

If mmap fails, blink will immediately crash. So updating allocPageErrorCode when
mmap fails is enough to avoid data race.

BUG=595631
==========

[commit-bot: I haz the power, 2016-03-24 11:09:01]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-03-24 11:11:04]

Description was changed from

==========
Update allocPageErrorCode only when mmap fails.

cluster-fuzz:
https://cluster-fuzz.appspot.com/testcase?key=5822916706435072

If mmap fails, blink will immediately crash. So updating allocPageErrorCode when
mmap fails is enough to avoid data race.

BUG=595631
==========

to

==========
Update allocPageErrorCode only when mmap fails.

cluster-fuzz:
https://cluster-fuzz.appspot.com/testcase?key=5822916706435072

If mmap fails, blink will immediately crash. So updating allocPageErrorCode when
mmap fails is enough to avoid data race.

BUG=595631

Committed: https://crrev.com/513bc4519eaf958471a4d169fe3169addfe2f5b3
Cr-Commit-Position: refs/heads/master@{#383052}
==========

[commit-bot: I haz the power, 2016-03-24 11:11:05]

Patchset 1 (id:??) landed as
https://crrev.com/513bc4519eaf958471a4d169fe3169addfe2f5b3
Cr-Commit-Position: refs/heads/master@{#383052}