tracing: Add the TimeTicks clock source as trace metadata

tracing: Add the TimeTicks clock source as trace metadata

This is useful when syncing Chrome traces with external traces because
we have more information to determine whether the two traces use
timestamps from the same underlying clock and can therefore be combined.

BUG=597350
Committed: https://crrev.com/7a9c1264c13dd33d0e929b4477390d8ccda3cdd5
Cr-Commit-Position: refs/heads/master@{#384555}

[charliea (OOO until 10-5), 2016-03-24 19:27:25]

Patchset #1 (id:1) has been deleted

[charliea (OOO until 10-5), 2016-03-24 19:32:20]

Patchset #1 (id:20001) has been deleted

[charliea (OOO until 10-5), 2016-03-24 19:33:04]

Patchset #1 (id:40001) has been deleted

[charliea (OOO until 10-5), 2016-03-24 19:33:15]

Description was changed from

==========
tracing: Adds the TimeTicks clock source as trace metadata

This is useful when syncing Chrome traces with external traces because
we have more information to determine whether the two traces use
timestamps from the same underlying clock and can therefore be combined.

BUG=597350
==========

to

==========
tracing: Add the TimeTicks clock source as trace metadata

This is useful when syncing Chrome traces with external traces because
we have more information to determine whether the two traces use
timestamps from the same underlying clock and can therefore be combined.

BUG=597350
==========

[charliea (OOO until 10-5), 2016-03-24 19:33:28]

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

[commit-bot: I haz the power, 2016-03-24 19:34:01]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/60001

[charliea (OOO until 10-5), 2016-03-24 20:27:20]

charliea@chromium.org changed reviewers:
+ oysteine@google.com

[commit-bot: I haz the power, 2016-03-24 21:18:57]

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

[commit-bot: I haz the power, 2016-03-24 21:18:58]

Dry run: This issue passed the CQ dry run.

[charliea (OOO until 10-5), 2016-03-31 15:54:23]

Patchset #1 (id:60001) has been deleted

[charliea (OOO until 10-5), 2016-03-31 15:54:29]

Patchset #1 (id:80001) has been deleted

[charliea (OOO until 10-5), 2016-03-31 15:54:46]

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

[commit-bot: I haz the power, 2016-03-31 15:54:59]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/100001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/100001

[commit-bot: I haz the power, 2016-03-31 16:04:32]

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

[commit-bot: I haz the power, 2016-03-31 16:04:32]

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

[charliea (OOO until 10-5), 2016-03-31 19:08:12]

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

[commit-bot: I haz the power, 2016-03-31 19:08:38]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/120001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/120001

[commit-bot: I haz the power, 2016-03-31 19:33:11]

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

[commit-bot: I haz the power, 2016-03-31 19:33:12]

Dry run: Try jobs failed on following builders:
  cast_shell_android on tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/cast_shell_a...)

[charliea (OOO until 10-5), 2016-03-31 20:04:57]

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

[commit-bot: I haz the power, 2016-03-31 20:05:23]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/140001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/140001

[commit-bot: I haz the power, 2016-03-31 20:22:00]

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

[commit-bot: I haz the power, 2016-03-31 20:22:01]

Dry run: Try jobs failed on following builders:
  android_chromium_gn_compile_dbg on tryserver.chromium.android (JOB_FAILED,
https://build.chromium.org/p/tryserver.chromium.android/builders/android_chro...)

[charliea (OOO until 10-5), 2016-03-31 21:30:22]

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

[commit-bot: I haz the power, 2016-03-31 21:30:51]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/160001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/160001

[commit-bot: I haz the power, 2016-03-31 21:39:38]

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

[commit-bot: I haz the power, 2016-03-31 21:39:39]

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

[Nico, 2016-03-31 22:37:05]

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

[Nico, 2016-03-31 22:37:06]

https://codereview.chromium.org/1826973004/diff/160001/base/time/time.h
File base/time/time.h (right):

https://codereview.chromium.org/1826973004/diff/160001/base/time/time.h#newco...
base/time/time.h:646: enum class BASE_EXPORT Clock {
This is incorrect; export has no effect on enums. See

https://build.chromium.org/p/tryserver.chromium.win/builders/win_clang/builds...

../..\base/time/time.h(646,14):  error: 'dllimport' attribute only applies to
variables, functions and classes [-Werror,-Wignored-attributes]
  enum class BASE_EXPORT Clock {
             ^

[charliea (OOO until 10-5), 2016-03-31 23:21:21]

Patchset #1 (id:100001) has been deleted

[charliea (OOO until 10-5), 2016-03-31 23:21:31]

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

[charliea (OOO until 10-5), 2016-03-31 23:21:44]

Patchset #1 (id:120001) has been deleted

[charliea (OOO until 10-5), 2016-03-31 23:21:53]

Patchset #1 (id:140001) has been deleted

[commit-bot: I haz the power, 2016-03-31 23:21:57]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/180001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/180001

[charliea (OOO until 10-5), 2016-03-31 23:22:03]

Patchset #1 (id:160001) has been deleted

[charliea (OOO until 10-5), 2016-03-31 23:22:17]

Good to know. Thanks Nico!

[oystein (OOO til 10th of July), 2016-03-31 23:32:38]

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

[oystein (OOO til 10th of July), 2016-03-31 23:32:38]

lgtm

[commit-bot: I haz the power, 2016-03-31 23:39:22]

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

[commit-bot: I haz the power, 2016-03-31 23:39:23]

Dry run: Try jobs failed on following builders:
  chromeos_daisy_chromium_compile_only_ng on tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromeos_daisy_...)
  chromeos_x86-generic_chromium_compile_only_ng on tryserver.chromium.linux
(JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.linux/builders/chromeos_x86-ge...)

[charliea (OOO until 10-5), 2016-04-01 00:32:40]

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

[commit-bot: I haz the power, 2016-04-01 00:33:17]

Dry run: CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/200001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/200001

[commit-bot: I haz the power, 2016-04-01 06:35:00]

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

[commit-bot: I haz the power, 2016-04-01 06:35:01]

Dry run: Try jobs failed on following builders:
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_TIMED_OUT,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[charliea (OOO until 10-5), 2016-04-01 11:32:00]

The CQ bit was checked by charliea@chromium.org

[charliea (OOO until 10-5), 2016-04-01 11:32:00]

The patchset sent to the CQ was uploaded after l-g-t-m from
oysteine@chromium.org
Link to the patchset: https://codereview.chromium.org/1826973004/#ps200001
(title: " ")

[commit-bot: I haz the power, 2016-04-01 11:32:20]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1826973004/200001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1826973004/200001

[commit-bot: I haz the power, 2016-04-01 11:57:12]

Description was changed from

==========
tracing: Add the TimeTicks clock source as trace metadata

This is useful when syncing Chrome traces with external traces because
we have more information to determine whether the two traces use
timestamps from the same underlying clock and can therefore be combined.

BUG=597350
==========

to

==========
tracing: Add the TimeTicks clock source as trace metadata

This is useful when syncing Chrome traces with external traces because
we have more information to determine whether the two traces use
timestamps from the same underlying clock and can therefore be combined.

BUG=597350
==========

[commit-bot: I haz the power, 2016-04-01 11:57:13]

Committed patchset #2 (id:200001)

[commit-bot: I haz the power, 2016-04-01 11:58:37]

Description was changed from

==========
tracing: Add the TimeTicks clock source as trace metadata

This is useful when syncing Chrome traces with external traces because
we have more information to determine whether the two traces use
timestamps from the same underlying clock and can therefore be combined.

BUG=597350
==========

to

==========
tracing: Add the TimeTicks clock source as trace metadata

This is useful when syncing Chrome traces with external traces because
we have more information to determine whether the two traces use
timestamps from the same underlying clock and can therefore be combined.

BUG=597350

Committed: https://crrev.com/7a9c1264c13dd33d0e929b4477390d8ccda3cdd5
Cr-Commit-Position: refs/heads/master@{#384555}
==========

[commit-bot: I haz the power, 2016-04-01 11:58:39]

Patchset 2 (id:??) landed as
https://crrev.com/7a9c1264c13dd33d0e929b4477390d8ccda3cdd5
Cr-Commit-Position: refs/heads/master@{#384555}