Collect histograms from Plugins and GPU processes child processes only

Enable collecting histograms from Plugins and GPU processes
only. Will enable other process types after testing them.

R=jar,jam@chromium.org,sky
BUG=145294
Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=154501

[jar (doing other things), 2012-08-28 21:40:49]

LGTM

You probably should add to the bug that NACL was inconsistently pumping its IO
thread message loop, and hence it does not (currently) help to send it a
message.

John will need to officially review, as an OWNER.

[ramant (doing other things), 2012-08-28 22:20:05]

Hi sky,
  Would appreciate OWNERS stamp please.

thanks
raman

[sky, 2012-08-28 22:53:52]

You've got John as a reviewer, you don't need me.

[Nick Bray (chromium), 2012-08-29 23:50:26]

Ping: this is blocking http://codereview.chromium.org/10825462/

[jar (doing other things), 2012-08-30 00:04:17]

On 2012/08/29 23:50:26, Nick Bray (chromium) wrote:
> Ping: this is blocking http://codereview.chromium.org/10825462/

I think you meant to say that you were waiting for jam@ to review.

John: Can you take a look?  (very small patch).

[Nick Bray, 2012-08-30 00:10:09]

> I think you meant to say that you were waiting for jam@ to review.

Sorry if I was unclear or came off as rude.  I was trying to make sure the CL
wasn't lost in the cracks, but was not sure how that should happen.

[sky, 2012-08-30 20:24:14]

LGTM

[ramant (doing other things), 2012-08-30 20:51:23]

On 2012/08/30 20:24:14, sky wrote:
> LGTM

Many many thanks sky. Sincerely appreciating it.
-raman

[commit-bot: I haz the power, 2012-08-30 20:51:50]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rtenneti@chromium.org/10885016/7001

[commit-bot: I haz the power, 2012-08-30 23:05:13]

Try job failure for 10885016-7001 (retry) on linux_rel for step
"interactive_ui_tests".
It's a second try, previously, step "interactive_ui_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=linux_rel&...

[jam, 2012-08-30 23:11:11]

sorry just saw this. feel free to ping me over IM if i miss a change.

[commit-bot: I haz the power, 2012-08-31 17:59:28]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/rtenneti@chromium.org/10885016/7001