Change VLOG to DVLOG

Change VLOG to DVLOG.

BUG=101424

[ytbai1991, 2014-11-22 19:52:15]

The CQ bit was checked by ytbai1991@gmail.com

[commit-bot: I haz the power, 2014-11-22 19:52:27]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/748783003/1

[commit-bot: I haz the power, 2014-11-22 19:52:28]

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

[commit-bot: I haz the power, 2014-11-22 19:52:30]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[ytbai1991, 2014-11-22 19:54:59]

ytbai1991@gmail.com changed reviewers:
+ mmenke@chromium.org

[ytbai1991, 2014-11-22 19:55:18]

PTAL

[mmenke, 2014-11-22 21:20:36]

On 2014/11/22 19:55:18, ytbai1991 wrote:
> PTAL

LGTM

[mmenke, 2014-11-22 21:20:37]

On 2014/11/22 19:55:18, ytbai1991 wrote:
> PTAL

LGTM

[mmenke, 2014-11-22 21:21:43]

On 2014/11/22 21:20:37, mmenke wrote:
> On 2014/11/22 19:55:18, ytbai1991 wrote:
> > PTAL
> 
> LGTM

Wait...Not LGTM.  These are test files, so it doesn't matter.

[mmenke, 2014-11-22 21:23:55]

On 2014/11/22 21:21:43, mmenke wrote:
> On 2014/11/22 21:20:37, mmenke wrote:
> > On 2014/11/22 19:55:18, ytbai1991 wrote:
> > > PTAL
> > 
> > LGTM
> 
> Wait...Not LGTM.  These are test files, so it doesn't matter.

Also, if you're a new contributor, check out the contributing page on
chromium.org, and make sure you're added to the contributors file, and have
signed the contributor's agreement.

[mmenke, 2015-02-27 20:37:56]

mmenke@chromium.org changed reviewers:
- mmenke@chromium.org