Add base::StaticAtomicSequenceNumber.

Add base::StaticAtomicSequenceNumber.

This patch also replaces the global AtomicSequenceNumber variables with
StaticAtomicSequenceNumber in order to remove static initializers.

BUG=94925
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=126376

[acolwell GONE FROM CHROMIUM, 2012-03-05 17:09:44]

Changes in media/ LGTM

[erikwright (departed), 2012-03-05 17:50:41]

cfproxy_support LGTM.

[agl, 2012-03-05 17:52:17]

ipc/ LGTM

[kinuko, 2012-03-05 18:15:23]

webkit/quota LGTM

[Lei Zhang, 2012-03-05 20:13:51]

printing/ LGTM

[jstritar, 2012-03-05 20:18:56]

extensions/ LGTM

[Philippe, 2012-03-09 13:49:15]

On 2012/03/05 20:18:56, jstritar wrote:
> extensions/ LGTM

Ping :)

[Lei Zhang, 2012-03-09 20:27:55]

On 2012/03/09 13:49:15, Philippe wrote:
> On 2012/03/05 20:18:56, jstritar wrote:
> > extensions/ LGTM
> 
> Ping :)

Who are you pinging?

[Philippe, 2012-03-12 11:11:19]

On 2012/03/09 20:27:55, Lei Zhang wrote:
> On 2012/03/09 13:49:15, Philippe wrote:
> > On 2012/03/05 20:18:56, jstritar wrote:
> > > extensions/ LGTM
> > 
> > Ping :)
> 
> Who are you pinging?

I miss approval for the changes in base/. I initially added Brett to review
them. Do you have time Brett to take a look?

[brettw, 2012-03-12 17:50:11]

base LGTM

[commit-bot: I haz the power, 2012-03-12 17:54:16]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pliard@chromium.org/9415039/16001

[commit-bot: I haz the power, 2012-03-12 18:49:37]

Try job failure for 9415039-16001 (retry) on mac_rel for step "compile" (clobber
build).
It's a second try, previously, step "compile" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[commit-bot: I haz the power, 2012-03-12 19:06:57]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pliard@chromium.org/9415039/16001

[commit-bot: I haz the power, 2012-03-12 23:53:45]

The commit queue went berserk retrying too often for a
seemingly flaky test. Builder is win_rel, revision is 126267, job name
was 9415039-16001 (retry) (retry) (retry) (retry).

[commit-bot: I haz the power, 2012-03-13 09:40:20]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/pliard@chromium.org/9415039/16001

[commit-bot: I haz the power, 2012-03-13 12:07:22]

Change committed as 126376