Revert of Reland: Add a trace-event for each runtime-stats timer (CL 2052523002)

Revert of Reland: Add a trace-event for each runtime-stats timer (CL 2052523002) (patchset #2 id:20001 of https://codereview.chromium.org/2063853002/ )

Reason for revert:
[Sheriff] Speculative revert for http://crbug.com/620279

Original issue's description:
> Reland: Add a trace-event for each runtime-stats timer (CL 2052523002)
>
> The trace-events will have a high overhead when turned on, but they are in a disabled-by-default category.
>
> As long as the off overhead is negligible, this CL allows us to understand the behavior of V8 rather than its performance at the moment.
>
> The original CL was failing the TSAN builder, the variable in question was intended to be accessed quickly with no guarantee.
> Switched to using an Atomic variable with no barrier read/write.
>
> BUG=v8:5089
>
> patch from issue 2052523002 at patchset 100001 (http://crrev.com/2052523002#ps100001)
>
> Committed: https://crrev.com/fd7080cbefc21f2f890b5db00d4eadf163e2cbbf
> Cr-Commit-Position: refs/heads/master@{#36973}

TBR=cbruni@chromium.org,fmeawad@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5089
Committed: https://crrev.com/6d96d19f1f8f4873b581d3635149fd4e42eb2ffa
Cr-Commit-Position: refs/heads/master@{#36997}

[Michael Achenbach, 2016-06-15 11:43:37]

The CQ bit was checked by machenbach@chromium.org

[Michael Achenbach, 2016-06-15 11:43:38]

Created Revert of Reland: Add a trace-event for each runtime-stats timer (CL
2052523002)

[commit-bot: I haz the power, 2016-06-15 11:43:49]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2068143002/1

[commit-bot: I haz the power, 2016-06-15 11:44:03]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-15 11:45:45]

Description was changed from

==========
Revert of Reland: Add a trace-event for each runtime-stats timer (CL 2052523002)
(patchset #2 id:20001 of https://codereview.chromium.org/2063853002/ )

Reason for revert:
[Sheriff] Speculative revert for http://crbug.com/620279

Original issue's description:
> Reland: Add a trace-event for each runtime-stats timer (CL 2052523002)
> 
> The trace-events will have a high overhead when turned on, but they are in a
disabled-by-default category.
> 
> As long as the off overhead is negligible, this CL allows us to understand the
behavior of V8 rather than its performance at the moment.
> 
> The original CL was failing the TSAN builder, the variable in question was
intended to be accessed quickly with no guarantee.
> Switched to using an Atomic variable with no barrier read/write.
> 
> BUG=v8:5089
> 
> patch from issue 2052523002 at patchset 100001
(http://crrev.com/2052523002#ps100001)
> 
> Committed: https://crrev.com/fd7080cbefc21f2f890b5db00d4eadf163e2cbbf
> Cr-Commit-Position: refs/heads/master@{#36973}

TBR=cbruni@chromium.org,fmeawad@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5089
==========

to

==========
Revert of Reland: Add a trace-event for each runtime-stats timer (CL 2052523002)
(patchset #2 id:20001 of https://codereview.chromium.org/2063853002/ )

Reason for revert:
[Sheriff] Speculative revert for http://crbug.com/620279

Original issue's description:
> Reland: Add a trace-event for each runtime-stats timer (CL 2052523002)
>
> The trace-events will have a high overhead when turned on, but they are in a
disabled-by-default category.
>
> As long as the off overhead is negligible, this CL allows us to understand the
behavior of V8 rather than its performance at the moment.
>
> The original CL was failing the TSAN builder, the variable in question was
intended to be accessed quickly with no guarantee.
> Switched to using an Atomic variable with no barrier read/write.
>
> BUG=v8:5089
>
> patch from issue 2052523002 at patchset 100001
(http://crrev.com/2052523002#ps100001)
>
> Committed: https://crrev.com/fd7080cbefc21f2f890b5db00d4eadf163e2cbbf
> Cr-Commit-Position: refs/heads/master@{#36973}

TBR=cbruni@chromium.org,fmeawad@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=v8:5089

Committed: https://crrev.com/6d96d19f1f8f4873b581d3635149fd4e42eb2ffa
Cr-Commit-Position: refs/heads/master@{#36997}
==========

[commit-bot: I haz the power, 2016-06-15 11:45:46]

Patchset 1 (id:??) landed as
https://crrev.com/6d96d19f1f8f4873b581d3635149fd4e42eb2ffa
Cr-Commit-Position: refs/heads/master@{#36997}