replace VLOG with DVLOG in content/browser/loader/resource_loader.cc

replace VLOG with DVLOG in content/browser/loader/resource_loader.cc

VLOG() has a high overhead due to pattern matching. One of the major culprits
is in content/browser/loader/resource_loader.cc

BUG=489818, 489441
R=sque,mmenke

Committed: https://crrev.com/0e79091bb90183eca25e998d2d9e134003313f71
Cr-Commit-Position: refs/heads/master@{#334388}

[Mostyn Bramley-Moore, 2015-06-15 06:28:45]

@mmenke: PTAL.  Unfortunately I don't have access to go/cwp to see if this still
is an issue, but the change is trivial anyway.

[mmenke, 2015-06-15 14:57:47]

On 2015/06/15 06:28:45, Mostyn Bramley-Moore wrote:
> @mmenke: PTAL.  Unfortunately I don't have access to go/cwp to see if this
still
> is an issue, but the change is trivial anyway.

LGTM

[Mostyn Bramley-Moore, 2015-06-15 14:58:35]

The CQ bit was checked by mostynb@opera.com

[commit-bot: I haz the power, 2015-06-15 14:58:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1174173013/1

[commit-bot: I haz the power, 2015-06-15 16:18:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-15 16:19:25]

Patchset 1 (id:??) landed as
https://crrev.com/0e79091bb90183eca25e998d2d9e134003313f71
Cr-Commit-Position: refs/heads/master@{#334388}

[Simon Que, 2015-06-15 17:58:10]

On 2015/06/15 16:19:25, commit-bot: I haz the power wrote:
> Patchset 1 (id:??) landed as
> https://crrev.com/0e79091bb90183eca25e998d2d9e134003313f71
> Cr-Commit-Position: refs/heads/master@{#334388}

Thanks for making this change, Mostyn.

Changes take several weeks to propagate through the release system. I'll check
it when the time is right, and update the crbug. No need for further action on
your part.