deadbeef 817c8af52a Revert of Move "max IPv6 networks" logic to BasicPortAllocator, and fix sorting. (patchset #2 id:20001 of https://codereview.webrtc.org/2983213002/ )
Reason for revert:
Breaks IpcNetworkManagerTest.TestMergeNetworkList, because it has built-in assumptions about network ordering that it shouldn't have. Will reland after fixing that test.

Original issue's description:
> Move "max IPv6 networks" logic to BasicPortAllocator, and fix sorting.
>
> This CL moves the responsibility for restricting the number of IPv6
> interfaces used for ICE to BasicPortAllocator. This is the right place
> to do it in the first place; it's where all the rest of the filtering
> occurs. And NetworkManager shouldn't need to know about ICE limitations;
> only the ICE classes should.
>
> Part of the reason I'm doing this is that I want to add a
> "max_ipv6_networks" API to RTCConfiguration, so that applications can
> override the default easily (see linked bug). But that means that
> PeerConnection would need to be able to call "set_max_ipv6_networks" on
> the underlying object that does the filtering, and that method isn't
> available on the "NetworkManager" base class. So rather than adding
> another method to a place it doesn't belong, I'm moving it to the place
> it does belong.
>
> In the process, I noticed that "CompareNetworks" is inconsistent with
> "SortNetworks"; the former orders interfaces alphabetically, and the
> latter reverse-alphabetically. I believe this was unintentional, and
> results in undesirable behavior (like "eth1" being preferred over
> "eth0"), so I'm fixing it and adding a test.
>
> BUG=webrtc:7703
>
> Review-Url: https://codereview.webrtc.org/2983213002
> Cr-Commit-Position: refs/heads/master@{#19112}
> Committed: ad9561404c

TBR=zhihuang@webrtc.org,pthatcher@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:7703

Review-Url: https://codereview.webrtc.org/2984853002
Cr-Commit-Position: refs/heads/master@{#19114}
2017-07-21 19:59:46 +00:00
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