Update SignalingAddress to normalize all JIDs.

Update SignalingAddress to normalize all JIDs.

Previously JIDs were not normalized consistently which results in
failure to connect when host has mixed-case JID. This CL fixes it by
making SignalingAddress always normalize all JIDs. Also it's now a class
instead of struct, to ensure that the content is always consistent.

BUG=675014
Review-Url: https://codereview.chromium.org/2577333003
Cr-Commit-Position: refs/heads/master@{#439623}
(cherry picked from commit 428e8936ff8346722f3268db7b7d8df7117f5ad9)

Committed: https://chromium.googlesource.com/chromium/src/+/ce9009479f12fa5b335f53a027a6ec8ebef69af6

[Sergey Ulanov, 2016-12-21 00:15:45]

Description was changed from

==========
Update SignalingAddress to normalize all JIDs.

Previously JIDs were not normalized consistently which results in
failure to connect when host has mixed-case JID. This CL fixes it by
making SignalingAddress always normalize all JIDs. Also it's now a class
instead of struct, to ensure that the content is always consistent.

BUG=675014

Review-Url: https://codereview.chromium.org/2577333003
Cr-Commit-Position: refs/heads/master@{#439623}
(cherry picked from commit 428e8936ff8346722f3268db7b7d8df7117f5ad9)
==========

to

==========
Update SignalingAddress to normalize all JIDs.

Previously JIDs were not normalized consistently which results in
failure to connect when host has mixed-case JID. This CL fixes it by
making SignalingAddress always normalize all JIDs. Also it's now a class
instead of struct, to ensure that the content is always consistent.

BUG=675014

Review-Url: https://codereview.chromium.org/2577333003
Cr-Commit-Position: refs/heads/master@{#439623}
(cherry picked from commit 428e8936ff8346722f3268db7b7d8df7117f5ad9)

Committed:
https://chromium.googlesource.com/chromium/src/+/ce9009479f12fa5b335f53a027a6...
==========

[Sergey Ulanov, 2016-12-21 00:15:46]

Committed patchset #1 (id:1) manually as
ce9009479f12fa5b335f53a027a6ec8ebef69af6.