Revert of Implement CPU time for OS X and POSIX.

Revert of Implement CPU time for OS X and POSIX. (patchset #10 id:180001 of https://codereview.chromium.org/1959103004/ )

Reason for revert:
Buildbot is failing on Mac release build.

Original issue's description:
> Implement CPU time for OS X and POSIX.
>
> V8 tracing controller uses 2 clocks: wall clock and cpu clock. This patch
> implements CPU time for OS X and POSIX to provide more accurate
> accounting of CPU time used by each thread.
>
> BUG=v8:4984
> LOG=n
>
> Committed: https://crrev.com/025f3d262bab2748362374f1b90ac723a9655ee4
> Cr-Commit-Position: refs/heads/master@{#36188}

TBR=jochen@chromium.org,bmeurer@chromium.org,fmeawad@chromium.org,rsesek@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4984
Committed: https://crrev.com/bfb1c9e63cb03e1666cfde09811164db2a627a56
Cr-Commit-Position: refs/heads/master@{#36189}

[lpy, 2016-05-11 21:09:19]

Created Revert of Implement CPU time for OS X and POSIX.

[commit-bot: I haz the power, 2016-05-11 21:09:23]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1966173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1966173003/1

[commit-bot: I haz the power, 2016-05-11 21:09:25]

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

[commit-bot: I haz the power, 2016-05-11 21:09:26]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
Committers are members of the group "project-v8-committers".
Note that this has nothing to do with OWNERS files.

[fmeawad, 2016-05-11 21:11:03]

The CQ bit was checked by fmeawad@chromium.org

[fmeawad, 2016-05-11 21:11:03]

lgtm

[commit-bot: I haz the power, 2016-05-11 21:11:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1966173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1966173003/1

[commit-bot: I haz the power, 2016-05-11 21:11:13]

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

[commit-bot: I haz the power, 2016-05-11 21:11:14]

No L-G-T-M from a valid reviewer yet. 
CQ run can only be started by full committers or once the patch has
received an L-G-T-M from a full committer.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
Committers are members of the group "project-v8-committers".
Note that this has nothing to do with OWNERS files.

[adamk, 2016-05-11 21:15:51]

adamk@chromium.org changed reviewers:
+ adamk@chromium.org

[adamk, 2016-05-11 21:15:51]

lgtm

[adamk, 2016-05-11 21:15:56]

The CQ bit was checked by adamk@chromium.org

[commit-bot: I haz the power, 2016-05-11 21:16:02]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1966173003/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1966173003/1

[commit-bot: I haz the power, 2016-05-11 21:16:15]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-05-11 21:17:48]

Description was changed from

==========
Revert of Implement CPU time for OS X and POSIX. (patchset #10 id:180001 of
https://codereview.chromium.org/1959103004/ )

Reason for revert:
Buildbot is failing on Mac release build.

Original issue's description:
> Implement CPU time for OS X and POSIX.
> 
> V8 tracing controller uses 2 clocks: wall clock and cpu clock. This patch
> implements CPU time for OS X and POSIX to provide more accurate
> accounting of CPU time used by each thread.
> 
> BUG=v8:4984
> LOG=n
> 
> Committed: https://crrev.com/025f3d262bab2748362374f1b90ac723a9655ee4
> Cr-Commit-Position: refs/heads/master@{#36188}

TBR=jochen@chromium.org,bmeurer@chromium.org,fmeawad@chromium.org,rsesek@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4984
==========

to

==========
Revert of Implement CPU time for OS X and POSIX. (patchset #10 id:180001 of
https://codereview.chromium.org/1959103004/ )

Reason for revert:
Buildbot is failing on Mac release build.

Original issue's description:
> Implement CPU time for OS X and POSIX.
>
> V8 tracing controller uses 2 clocks: wall clock and cpu clock. This patch
> implements CPU time for OS X and POSIX to provide more accurate
> accounting of CPU time used by each thread.
>
> BUG=v8:4984
> LOG=n
>
> Committed: https://crrev.com/025f3d262bab2748362374f1b90ac723a9655ee4
> Cr-Commit-Position: refs/heads/master@{#36188}

TBR=jochen@chromium.org,bmeurer@chromium.org,fmeawad@chromium.org,rsesek@chro...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:4984

Committed: https://crrev.com/bfb1c9e63cb03e1666cfde09811164db2a627a56
Cr-Commit-Position: refs/heads/master@{#36189}
==========

[commit-bot: I haz the power, 2016-05-11 21:17:50]

Patchset 1 (id:??) landed as
https://crrev.com/bfb1c9e63cb03e1666cfde09811164db2a627a56
Cr-Commit-Position: refs/heads/master@{#36189}