Enable Skia tracing in browser process

Enable Skia tracing in browser process

Skia tracing works fine, but only in renderer processes.
( https://codereview.chromium.org/153063002 )
Now Skia tracing also works in browser process.

BUG=543149
R=nduca, bsalomon, humper, enne

Committed: https://crrev.com/106533b1571a76b2c23e99dff1aa060f6db01602
Cr-Commit-Position: refs/heads/master@{#355082}

[Lof, 2015-10-14 15:23:55]

lof84@yandex-team.ru changed reviewers:
+ piman@chromium.org

[bsalomon, 2015-10-14 15:26:58]

On 2015/10/14 15:23:55, Lof wrote:

lgtm

[Lof, 2015-10-14 20:56:19]

The CQ bit was checked by lof84@yandex-team.ru

[commit-bot: I haz the power, 2015-10-14 20:57:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1408583002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1408583002/1

[commit-bot: I haz the power, 2015-10-14 20:57:16]

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

[commit-bot: I haz the power, 2015-10-14 20:57:17]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[Lof, 2015-10-14 21:36:24]

On 2015/10/14 15:26:58, bsalomon wrote:
> On 2015/10/14 15:23:55, Lof wrote:
> 
> lgtm

It looks like I need more lgtms.

[enne (OOO), 2015-10-19 21:25:11]

enne@chromium.org changed reviewers:
+ sievers@chromium.org

[enne (OOO), 2015-10-19 21:25:19]

+sievers

[no sievers, 2015-10-19 21:31:47]

lgtm

[Lof, 2015-10-20 07:53:45]

The CQ bit was checked by lof84@yandex-team.ru

[commit-bot: I haz the power, 2015-10-20 07:54:36]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1408583002/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1408583002/1

[commit-bot: I haz the power, 2015-10-20 08:25:53]

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

[commit-bot: I haz the power, 2015-10-20 08:25:54]

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

[Lof, 2015-10-20 16:03:27]

The CQ bit was checked by lof84@yandex-team.ru

[Lof, 2015-10-20 16:03:27]

The patchset sent to the CQ was uploaded after l-g-t-m from bsalomon@google.com,
sievers@chromium.org
Link to the patchset: https://codereview.chromium.org/1408583002/#ps20001
(title: "Single process mode fix")

[commit-bot: I haz the power, 2015-10-20 16:03:43]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1408583002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1408583002/20001

[commit-bot: I haz the power, 2015-10-20 17:05:56]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-10-20 17:06:42]

Patchset 2 (id:??) landed as
https://crrev.com/106533b1571a76b2c23e99dff1aa060f6db01602
Cr-Commit-Position: refs/heads/master@{#355082}