favor DCHECK_CURRENTLY_ON for better logs in content/browser/[f-p]*

favor DCHECK_CURRENTLY_ON for better logs in content/browser/[f-p]*

BUG=466848
Committed: https://crrev.com/4c27d0473be08853f38b5031c660bfb3ae6158d4
Cr-Commit-Position: refs/heads/master@{#321215}

[Mostyn Bramley-Moore, 2015-03-13 12:26:24]

mostynb@opera.com changed reviewers:
+ creis@chromium.org

[Mostyn Bramley-Moore, 2015-03-13 12:26:53]

@Charlie: PTAL.

(I'm trying to spread the load around content/OWNERS a bit, so there are some
related issues submitted separately.)

[Charlie Reis, 2015-03-18 18:23:29]

LGTM

[Mostyn Bramley-Moore, 2015-03-18 19:46:47]

The CQ bit was checked by mostynb@opera.com

[commit-bot: I haz the power, 2015-03-18 19:47:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1000373002/20001

[commit-bot: I haz the power, 2015-03-18 19:51:05]

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

[commit-bot: I haz the power, 2015-03-18 19:51:08]

Try jobs failed on following builders:
  ios_rel_device_ninja on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/ios_rel_device_ni...)
  mac_chromium_compile_dbg_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_comp...)
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_FAILED,
http://build.chromium.org/p/tryserver.chromium.mac/builders/mac_chromium_rel_...)

[Mostyn Bramley-Moore, 2015-03-18 20:04:44]

The CQ bit was checked by mostynb@opera.com

[Mostyn Bramley-Moore, 2015-03-18 20:04:45]

The patchset sent to the CQ was uploaded after l-g-t-m from creis@chromium.org
Link to the patchset: https://codereview.chromium.org/1000373002/#ps40001
(title: "rebase on master")

[commit-bot: I haz the power, 2015-03-18 20:05:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1000373002/40001

[commit-bot: I haz the power, 2015-03-18 21:48:04]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-03-18 21:48:51]

Patchset 3 (id:??) landed as
https://crrev.com/4c27d0473be08853f38b5031c660bfb3ae6158d4
Cr-Commit-Position: refs/heads/master@{#321215}