DNSDomainFromDot: Reject empty labels.

DNSDomainFromDot: Reject empty labels.

Don't allow empty labels in DNS names (".example.domain.com" or
"google..com").

BUG=456391
Committed: https://crrev.com/c7f5ee53e3b82696a75bfbde7474af9a696aa9c3
Cr-Commit-Position: refs/heads/master@{#319542}

[Deprecated (see juliatuttle), 2015-03-03 15:31:32]

ttuttle@chromium.org changed reviewers:
+ rsleevi@chromium.org

[Deprecated (see juliatuttle), 2015-03-03 15:31:33]

PTAL, rsleevi.

[Ryan Sleevi, 2015-03-06 22:11:36]

LGTM % nit

Sorry for the delay, I've been hunting down interop issues on this. This will
definitely cause some, but it's the right thing to do. I'm going to see about
fixing this in the URL spec going forward.

https://codereview.chromium.org/919023003/diff/80001/net/dns/host_resolver_pr...
File net/dns/host_resolver_proc.cc (right):

https://codereview.chromium.org/919023003/diff/80001/net/dns/host_resolver_pr...
net/dns/host_resolver_proc.cc:133: }
Don't use { } here.

[Ryan Sleevi, 2015-03-06 22:35:35]

The CQ bit was checked by rsleevi@chromium.org

[commit-bot: I haz the power, 2015-03-06 22:36:29]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/919023003/80001

[commit-bot: I haz the power, 2015-03-07 00:38:42]

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

[commit-bot: I haz the power, 2015-03-07 00:38:42]

Try jobs failed on following builders:
  mac_chromium_compile_dbg_ng on tryserver.chromium.mac (JOB_TIMED_OUT, no build
URL)
  mac_chromium_rel_ng on tryserver.chromium.mac (JOB_TIMED_OUT, no build URL)
Timed out jobs are not retried to avoid causing additional load on the builders
with large pending queues.

[Ryan Sleevi, 2015-03-07 01:41:31]

The CQ bit was checked by rsleevi@chromium.org

[commit-bot: I haz the power, 2015-03-07 01:42:41]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/919023003/80001

[commit-bot: I haz the power, 2015-03-07 01:44:12]

Committed patchset #5 (id:80001)

[commit-bot: I haz the power, 2015-03-07 01:44:45]

Patchset 5 (id:??) landed as
https://crrev.com/c7f5ee53e3b82696a75bfbde7474af9a696aa9c3
Cr-Commit-Position: refs/heads/master@{#319542}