Cleanup: Convert chrome_browser_main_linux.cc to use the blocking thread pool.

Cleanup: Convert chrome_browser_main_linux.cc to use the blocking thread pool.

Also remove cruft and simplify code.

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=272728

[jochen (gone - plz use gerrit), 2014-05-23 07:59:20]

lgtm

[Lei Zhang, 2014-05-23 08:02:06]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2014-05-23 08:03:12]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/thestig@chromium.org/297023002/1

[commit-bot: I haz the power, 2014-05-23 11:15:48]

FYI, CQ is re-trying this CL (attempt #1).
Please consider checking whether the failures are real,
and report flakes to chrome-troopers@google.com.
The failing builders are:
  linux_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_rel/bu...)
  linux_gpu_triggered_tests on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/linux_gpu_trigger...)

[commit-bot: I haz the power, 2014-05-23 11:33:25]

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

[commit-bot: I haz the power, 2014-05-23 11:33:25]

Try jobs failed on following builders:
  linux_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_rel/bu...)

[Lei Zhang, 2014-05-23 22:03:11]

On 2014/05/23 11:33:25, I haz the power (commit-bot) wrote:
> Try jobs failed on following builders:
>   linux_chromium_rel on tryserver.chromium
>
(http://build.chromium.org/p/tryserver.chromium/builders/linux_chromium_rel/bu...)

Also updated c/b/sxs_linux.* to check for the blocking thread pool.

[Lei Zhang, 2014-05-23 22:03:21]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2014-05-23 22:04:11]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/thestig@chromium.org/297023002/20001

[commit-bot: I haz the power, 2014-05-24 02:50:52]

FYI, CQ is re-trying this CL (attempt #1).
Please consider checking whether the failures are real,
and report flakes to chrome-troopers@google.com.
The failing builders are:
  mac_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/mac_chromium_rel/buil...)

[commit-bot: I haz the power, 2014-05-24 05:10:00]

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

[commit-bot: I haz the power, 2014-05-24 05:10:00]

Try jobs failed on following builders:
  mac_chromium_rel on tryserver.chromium
(http://build.chromium.org/p/tryserver.chromium/builders/mac_chromium_rel/buil...)

[Lei Zhang, 2014-05-24 05:55:36]

The CQ bit was checked by thestig@chromium.org

[commit-bot: I haz the power, 2014-05-24 05:55:45]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/thestig@chromium.org/297023002/20001

[commit-bot: I haz the power, 2014-05-24 12:57:12]

Change committed as 272728