net: calculate dns header size only once per query/response

net: calculate dns header size only once per query/response

Introduce a constant for this, so it is done only once, which leads to
shorter code in some places.

BUG=None
TEST=net_unittests
R=eroman@chromium.org

Review-Url: https://codereview.chromium.org/2790823003
Cr-Commit-Position: refs/heads/master@{#461574}
Committed: https://chromium.googlesource.com/chromium/src/+/8dab5e7ae866d7996e66f1b76b0b599541ea9fdf

[tfarina, 2017-03-31 02:16:44]

The CQ bit was checked by tfarina@chromium.org to run a CQ dry run

[commit-bot: I haz the power, 2017-03-31 02:17:07]

Dry run: CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[tfarina, 2017-03-31 02:19:34]

Description was changed from

==========
dns: calculate dns header size only once per query/response

Introduce a constant for this, so it is done only once, which leads to
shorter code in some places.

BUG=None
TEST=net_unittests
R=eroman@chromium.org
==========

to

==========
net: calculate dns header size only once per query/response

Introduce a constant for this, so it is done only once, which leads to
shorter code in some places.

BUG=None
TEST=net_unittests
R=eroman@chromium.org
==========

[commit-bot: I haz the power, 2017-03-31 03:49:00]

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

[commit-bot: I haz the power, 2017-03-31 03:49:01]

Dry run: This issue passed the CQ dry run.

[eroman, 2017-04-03 19:43:14]

lgtm

[tfarina, 2017-04-03 22:06:51]

The CQ bit was checked by tfarina@chromium.org

[commit-bot: I haz the power, 2017-04-03 22:07:39]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.chromium.or...

[commit-bot: I haz the power, 2017-04-03 23:17:25]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1491257211216750, "parent_rev":
"1a1911b78b1e601dd11ef60b9210ce6303443ab0", "commit_rev":
"8dab5e7ae866d7996e66f1b76b0b599541ea9fdf"}

[commit-bot: I haz the power, 2017-04-03 23:18:13]

Description was changed from

==========
net: calculate dns header size only once per query/response

Introduce a constant for this, so it is done only once, which leads to
shorter code in some places.

BUG=None
TEST=net_unittests
R=eroman@chromium.org
==========

to

==========
net: calculate dns header size only once per query/response

Introduce a constant for this, so it is done only once, which leads to
shorter code in some places.

BUG=None
TEST=net_unittests
R=eroman@chromium.org

Review-Url: https://codereview.chromium.org/2790823003
Cr-Commit-Position: refs/heads/master@{#461574}
Committed:
https://chromium.googlesource.com/chromium/src/+/8dab5e7ae866d7996e66f1b76b0b...
==========

[commit-bot: I haz the power, 2017-04-03 23:18:14]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/chromium/src/+/8dab5e7ae866d7996e66f1b76b0b...