Make non-scoped trace macros work in one-line scopes.

Make non-scoped trace macros work in one-line scopes.

BUG=120727
Committed: http://src.chromium.org/viewvc/chrome?view=rev&revision=129753

[jar (doing other things), 2012-03-29 01:33:24]

lgtm

[commit-bot: I haz the power, 2012-03-29 16:35:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jbates@chromium.org/9844035/1

[commit-bot: I haz the power, 2012-03-29 20:45:04]

Try job failure for 9844035-1 (retry) (retry) on win_rel for step
"browser_tests".
It's a second try, previously, step "browser_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=win_rel&nu...

[commit-bot: I haz the power, 2012-03-29 21:01:05]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jbates@chromium.org/9844035/1

[commit-bot: I haz the power, 2012-03-29 22:57:41]

Try job failure for 9844035-1 (retry) on mac_rel for step "browser_tests".
It's a second try, previously, step "browser_tests" failed.
http://build.chromium.org/p/tryserver.chromium/buildstatus?builder=mac_rel&nu...

[commit-bot: I haz the power, 2012-03-29 23:02:15]

CQ is trying da patch. Follow status at
https://chromium-status.appspot.com/cq/jbates@chromium.org/9844035/1

[commit-bot: I haz the power, 2012-03-30 01:33:11]

Change committed as 129753