test_runner: Move everything else into content namespace.

test_runner: Move everything else into content namespace.

BUG=331299
TEST=None, no functional changes. Green trybots.
TBR=jochen@chromium.org

Committed: https://src.chromium.org/viewvc/chrome?view=rev&revision=268097

[tfarina, 2014-05-04 03:17:36]

Bye bye WebTestRunner namespace.

[tfarina, 2014-05-04 03:17:51]

The CQ bit was checked by tfarina@chromium.org

[commit-bot: I haz the power, 2014-05-04 03:18:04]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tfarina@chromium.org/264003003/1

[commit-bot: I haz the power, 2014-05-04 03:38:17]

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

[commit-bot: I haz the power, 2014-05-04 03:38:17]

Try jobs failed on following builders:
  android_clang_dbg on tryserver.chromium

[tfarina, 2014-05-04 03:56:22]

The CQ bit was checked by tfarina@chromium.org

[commit-bot: I haz the power, 2014-05-04 03:56:34]

CQ is trying da patch. Follow status at
 https://chromium-status.appspot.com/cq/tfarina@chromium.org/264003003/1

[commit-bot: I haz the power, 2014-05-04 05:16:20]

Change committed as 268097