Reland of Add process uptime metadata event in tracing

Reland of Add process uptime metadata event in tracing (patchset #1 id:1 of https://codereview.chromium.org/2768123002/ )

Reason for revert:
The race was caused by https://codereview.chromium.org/2736283003/
Fixed the post tasks.

Original issue's description:
> Revert of Add process uptime metadata event in tracing (patchset #4 id:80001 of https://codereview.chromium.org/2753133002/ )
> 
> Reason for revert:
> Looks like this broke base_unittests on Linux TSan: https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20TSan%20Tests/builds/2916
> 
> Original issue's description:
> > Add process uptime metadata event in tracing
> > 
> > 1. Make CurrentProcessInfo::CreationTime consistent on Linux with Win
> >    and Mac implementation: return null value instead of crashing on
> >    failure.
> > 2. Use process_info_linux.cc in Android too, it works the same.
> > 3. Add the total process uptime as meadata event in traces and
> >    whitelist in filtered mode.
> > 
> > BUG=654667
> > 
> > Review-Url: https://codereview.chromium.org/2753133002
> > Cr-Commit-Position: refs/heads/master@{#458799}
> > Committed: https://chromium.googlesource.com/chromium/src/+/a714d7dc0f1b8ecdee128db04e24b0da1087df8a
> 
> TBR=oysteine@chromium.org,thakis@chromium.org,primiano@chromium.org,ssid@chromium.org
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=654667
> 
> Review-Url: https://codereview.chromium.org/2768123002
> Cr-Commit-Position: refs/heads/master@{#458869}
> Committed: https://chromium.googlesource.com/chromium/src/+/958a4bb090a8f57113d094be99b573c036ecb1e0

TBR=oysteine@chromium.org,thakis@chromium.org,dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
BUG=654667
Review-Url: https://codereview.chromium.org/2768933002
Cr-Commit-Position: refs/heads/master@{#459167}
Committed: https://chromium.googlesource.com/chromium/src/+/dd8debd00f82d49bd0b0cf1a58c6a679540ee87a

[ssid, 2017-03-22 21:01:34]

Created Reland of Add process uptime metadata event in tracing

[ssid, 2017-03-22 21:06:33]

Patchset #2 (id:150001) has been deleted

[ssid, 2017-03-22 21:08:07]

Patchset #1 (id:1) has been deleted

[ssid, 2017-03-22 21:09:36]

Description was changed from

==========
Reland of Add process uptime metadata event in tracing (patchset #1 id:1 of
https://codereview.chromium.org/2768123002/ )

Reason for revert:
The race was caused by https://codereview.chromium.org/2736283003/
Fixed the post tasks.

Original issue's description:
> Revert of Add process uptime metadata event in tracing (patchset #4 id:80001
of https://codereview.chromium.org/2753133002/ )
> 
> Reason for revert:
> Looks like this broke base_unittests on Linux TSan:
https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20TSan%...
> 
> Original issue's description:
> > Add process uptime metadata event in tracing
> > 
> > 1. Make CurrentProcessInfo::CreationTime consistent on Linux with Win
> >    and Mac implementation: return null value instead of crashing on
> >    failure.
> > 2. Use process_info_linux.cc in Android too, it works the same.
> > 3. Add the total process uptime as meadata event in traces and
> >    whitelist in filtered mode.
> > 
> > BUG=654667
> > 
> > Review-Url: https://codereview.chromium.org/2753133002
> > Cr-Commit-Position: refs/heads/master@{#458799}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/a714d7dc0f1b8ecdee128db04e24...
> 
>
TBR=oysteine@chromium.org,thakis@chromium.org,primiano@chromium.org,ssid@chro...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=654667
> 
> Review-Url: https://codereview.chromium.org/2768123002
> Cr-Commit-Position: refs/heads/master@{#458869}
> Committed:
https://chromium.googlesource.com/chromium/src/+/958a4bb090a8f57113d094be99b5...

TBR=oysteine@chromium.org,thakis@chromium.org,primiano@chromium.org,dgozman@c...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=654667
==========

to

==========
Reland of Add process uptime metadata event in tracing (patchset #1 id:1 of
https://codereview.chromium.org/2768123002/ )

Reason for revert:
The race was caused by https://codereview.chromium.org/2736283003/
Fixed the post tasks.

Original issue's description:
> Revert of Add process uptime metadata event in tracing (patchset #4 id:80001
of https://codereview.chromium.org/2753133002/ )
> 
> Reason for revert:
> Looks like this broke base_unittests on Linux TSan:
https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20TSan%...
> 
> Original issue's description:
> > Add process uptime metadata event in tracing
> > 
> > 1. Make CurrentProcessInfo::CreationTime consistent on Linux with Win
> >    and Mac implementation: return null value instead of crashing on
> >    failure.
> > 2. Use process_info_linux.cc in Android too, it works the same.
> > 3. Add the total process uptime as meadata event in traces and
> >    whitelist in filtered mode.
> > 
> > BUG=654667
> > 
> > Review-Url: https://codereview.chromium.org/2753133002
> > Cr-Commit-Position: refs/heads/master@{#458799}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/a714d7dc0f1b8ecdee128db04e24...
> 
>
TBR=oysteine@chromium.org,thakis@chromium.org,primiano@chromium.org,ssid@chro...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=654667
> 
> Review-Url: https://codereview.chromium.org/2768123002
> Cr-Commit-Position: refs/heads/master@{#458869}
> Committed:
https://chromium.googlesource.com/chromium/src/+/958a4bb090a8f57113d094be99b5...

TBR=oysteine@chromium.org,thakis@chromium.org,dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
BUG=654667
==========

[ssid, 2017-03-22 21:09:58]

primiano, ptal. Thanks!

[ssid, 2017-03-23 03:13:32]

ssid@chromium.org changed reviewers:
- dgozman@chromium.org, oysteine@chromium.org, thakis@chromium.org

[Primiano Tucci (use gerrit), 2017-03-23 15:53:24]

LGTM given that the tests are coming in the other CL.
thanks

[Primiano Tucci (use gerrit), 2017-03-23 15:53:35]

The CQ bit was checked by primiano@chromium.org

[commit-bot: I haz the power, 2017-03-23 15:54:13]

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, 2017-03-23 17:39:18]

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

[commit-bot: I haz the power, 2017-03-23 17:39:20]

Try jobs failed on following builders:
  win_chromium_x64_rel_ng on master.tryserver.chromium.win (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.win/builders/win_chromium_x64_...)

[ssid, 2017-03-23 18:00:46]

The CQ bit was checked by ssid@chromium.org

[commit-bot: I haz the power, 2017-03-23 18:01:20]

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, 2017-03-23 19:06:21]

CQ is committing da patch.

Bot data: {"patchset_id": 190001, "attempt_start_ts": 1490292046375050,
"parent_rev": "45def6b3f18b803e4ea050a84ba8fecbc786b6df", "commit_rev":
"dd8debd00f82d49bd0b0cf1a58c6a679540ee87a"}

[commit-bot: I haz the power, 2017-03-23 19:07:05]

Description was changed from

==========
Reland of Add process uptime metadata event in tracing (patchset #1 id:1 of
https://codereview.chromium.org/2768123002/ )

Reason for revert:
The race was caused by https://codereview.chromium.org/2736283003/
Fixed the post tasks.

Original issue's description:
> Revert of Add process uptime metadata event in tracing (patchset #4 id:80001
of https://codereview.chromium.org/2753133002/ )
> 
> Reason for revert:
> Looks like this broke base_unittests on Linux TSan:
https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20TSan%...
> 
> Original issue's description:
> > Add process uptime metadata event in tracing
> > 
> > 1. Make CurrentProcessInfo::CreationTime consistent on Linux with Win
> >    and Mac implementation: return null value instead of crashing on
> >    failure.
> > 2. Use process_info_linux.cc in Android too, it works the same.
> > 3. Add the total process uptime as meadata event in traces and
> >    whitelist in filtered mode.
> > 
> > BUG=654667
> > 
> > Review-Url: https://codereview.chromium.org/2753133002
> > Cr-Commit-Position: refs/heads/master@{#458799}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/a714d7dc0f1b8ecdee128db04e24...
> 
>
TBR=oysteine@chromium.org,thakis@chromium.org,primiano@chromium.org,ssid@chro...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=654667
> 
> Review-Url: https://codereview.chromium.org/2768123002
> Cr-Commit-Position: refs/heads/master@{#458869}
> Committed:
https://chromium.googlesource.com/chromium/src/+/958a4bb090a8f57113d094be99b5...

TBR=oysteine@chromium.org,thakis@chromium.org,dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
BUG=654667
==========

to

==========
Reland of Add process uptime metadata event in tracing (patchset #1 id:1 of
https://codereview.chromium.org/2768123002/ )

Reason for revert:
The race was caused by https://codereview.chromium.org/2736283003/
Fixed the post tasks.

Original issue's description:
> Revert of Add process uptime metadata event in tracing (patchset #4 id:80001
of https://codereview.chromium.org/2753133002/ )
> 
> Reason for revert:
> Looks like this broke base_unittests on Linux TSan:
https://uberchromegw.corp.google.com/i/chromium.memory/builders/Linux%20TSan%...
> 
> Original issue's description:
> > Add process uptime metadata event in tracing
> > 
> > 1. Make CurrentProcessInfo::CreationTime consistent on Linux with Win
> >    and Mac implementation: return null value instead of crashing on
> >    failure.
> > 2. Use process_info_linux.cc in Android too, it works the same.
> > 3. Add the total process uptime as meadata event in traces and
> >    whitelist in filtered mode.
> > 
> > BUG=654667
> > 
> > Review-Url: https://codereview.chromium.org/2753133002
> > Cr-Commit-Position: refs/heads/master@{#458799}
> > Committed:
https://chromium.googlesource.com/chromium/src/+/a714d7dc0f1b8ecdee128db04e24...
> 
>
TBR=oysteine@chromium.org,thakis@chromium.org,primiano@chromium.org,ssid@chro...
> # Skipping CQ checks because original CL landed less than 1 days ago.
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=654667
> 
> Review-Url: https://codereview.chromium.org/2768123002
> Cr-Commit-Position: refs/heads/master@{#458869}
> Committed:
https://chromium.googlesource.com/chromium/src/+/958a4bb090a8f57113d094be99b5...

TBR=oysteine@chromium.org,thakis@chromium.org,dgozman@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
BUG=654667

Review-Url: https://codereview.chromium.org/2768933002
Cr-Commit-Position: refs/heads/master@{#459167}
Committed:
https://chromium.googlesource.com/chromium/src/+/dd8debd00f82d49bd0b0cf1a58c6...
==========

[commit-bot: I haz the power, 2017-03-23 19:07:06]

Committed patchset #2 (id:190001) as
https://chromium.googlesource.com/chromium/src/+/dd8debd00f82d49bd0b0cf1a58c6...