Fixing invalid IPv6 address parsing stack underflow on Windows.

Fixing invalid IPv6 address parsing stack underflow on Windows.

Occurred when parsing an address with more than 7 colons. For example:
1::2:3:4:5:6:7::8

BUG=webrtc:7592
Review-Url: https://codereview.webrtc.org/2867653002
Cr-Commit-Position: refs/heads/master@{#18054}
Committed: https://chromium.googlesource.com/external/webrtc/+/966963ac7d62bdac051eacae234495fd355919e6

[Taylor Brandstetter, 2017-05-07 22:26:31]

deadbeef@webrtc.org changed reviewers:
+ ehmaldonado@webrtc.org

[Taylor Brandstetter, 2017-05-07 22:26:32]

PTAL

[ehmaldonado_webrtc, 2017-05-08 09:47:16]

On 2017/05/07 22:26:32, Taylor Brandstetter wrote:
> PTAL

LGTM, thanks!

[Taylor Brandstetter, 2017-05-08 17:53:39]

The CQ bit was checked by deadbeef@webrtc.org

[commit-bot: I haz the power, 2017-05-08 17:53:43]

CQ is trying da patch.

Follow status at:
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2017-05-08 18:35:57]

CQ is committing da patch.

Bot data: {"patchset_id": 40001, "attempt_start_ts": 1494266019670340,
"parent_rev": "90bdb3d138eaa10627c156b5487ffb4397f48359", "commit_rev":
"966963ac7d62bdac051eacae234495fd355919e6"}

[commit-bot: I haz the power, 2017-05-08 18:36:00]

Description was changed from

==========
Fixing invalid IPv6 address parsing stack underflow on Windows.

Occurred when parsing an address with more than 7 colons. For example:
1::2:3:4:5:6:7::8

BUG=webrtc:7592
==========

to

==========
Fixing invalid IPv6 address parsing stack underflow on Windows.

Occurred when parsing an address with more than 7 colons. For example:
1::2:3:4:5:6:7::8

BUG=webrtc:7592

Review-Url: https://codereview.webrtc.org/2867653002
Cr-Commit-Position: refs/heads/master@{#18054}
Committed:
https://chromium.googlesource.com/external/webrtc/+/966963ac7d62bdac051eacae2...
==========

[commit-bot: I haz the power, 2017-05-08 18:36:01]

Committed patchset #3 (id:40001) as
https://chromium.googlesource.com/external/webrtc/+/966963ac7d62bdac051eacae2...