Fix host delete. Delete always returns a 204 (empty response), which will throw an "authentication …

Fix host delete. Delete always returns a 204 (empty response), which will throw an "authentication failed" error with the current code. More generally, HTTP 2xx statuses are always success, and should be treated as such.

Also fix the error -> status terminology.

R=jamiewalch
BUG=

Committed: https://crrev.com/90608d11ac3142c4a7a9fe560445f6b0bb729517
Cr-Commit-Position: refs/heads/master@{#312536}

[Jamie, 2015-01-21 01:12:24]

jamiewalch@chromium.org changed reviewers:
+ jamiewalch@chromium.org

[Jamie, 2015-01-21 01:12:25]

lgtm

[rmsousa, 2015-01-21 23:27:34]

The CQ bit was checked by rmsousa@chromium.org

[commit-bot: I haz the power, 2015-01-21 23:28:38]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/837113003/1

[commit-bot: I haz the power, 2015-01-21 23:34:47]

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

[commit-bot: I haz the power, 2015-01-21 23:34:48]

Try jobs failed on following builders:
  linux_gpu on tryserver.chromium.gpu
(http://build.chromium.org/p/tryserver.chromium.gpu/builders/linux_gpu/builds/...)
  android_aosp on tryserver.chromium.linux
(http://build.chromium.org/p/tryserver.chromium.linux/builders/android_aosp/bu...)
  ios_dbg_simulator on tryserver.chromium.mac
(http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_dbg_simulator...)
  ios_rel_device_ng on tryserver.chromium.mac
(http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ng...)
  ios_rel_device_ninja_ng on tryserver.chromium.mac
(http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)

[rmsousa, 2015-01-22 00:53:01]

The CQ bit was checked by rmsousa@chromium.org

[commit-bot: I haz the power, 2015-01-22 00:53:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/837113003/20001

[commit-bot: I haz the power, 2015-01-22 02:36:46]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-01-22 02:38:17]

Patchset 2 (id:??) landed as
https://crrev.com/90608d11ac3142c4a7a9fe560445f6b0bb729517
Cr-Commit-Position: refs/heads/master@{#312536}