Reland of Enable testing of WebRTC IP Permission Finch

Reland of Enable testing of WebRTC IP Permission Finch (patchset #2 id:40002 of https://codereview.chromium.org/1388913002/ )

Reason for revert:
The original check in broke test and has been fixed by https://codereview.chromium.org/1381703006

Original issue's description:
> Revert of Enable testing of WebRTC IP Permission Finch (patchset #1 id:1 of https://codereview.chromium.org/1380893005/ )
>
> Reason for revert:
> Speculative revert since we see failing tests in the WebRTC waterfall related to ICE.
>
> See
>
> https://build.chromium.org/p/chromium.webrtc/builders/Win7%20Tester/builds/21950
> https://build.chromium.org/p/chromium.webrtc/builders/Mac%20Tester/builds/43969
>
> Original issue's description:
> > Enable testing of WebRTC IP Permission Finch
> >
> > BUG=538815
> >
> > Committed: https://crrev.com/efce5aa89bc5ac68f96184e44c4bb4b8c3a985e8
> > Cr-Commit-Position: refs/heads/master@{#352420}
>
> TBR=brettw@chromium.org,rkaplow@chromium.org,guoweis@chromium.org
> NOPRESUBMIT=true
> NOTREECHECKS=true
> NOTRY=true
> BUG=538815
>
> Committed: https://crrev.com/565e0d0173c5fb39441b773052de9f391060258b
> Cr-Commit-Position: refs/heads/master@{#352570}

TBR=brettw@chromium.org,rkaplow@chromium.org,henrika@chromium.org
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=538815
Committed: https://crrev.com/336786c5beb64348189f2f6cf9a5b2de14e37965
Cr-Commit-Position: refs/heads/master@{#352695}

[guoweis_left_chromium, 2015-10-06 20:58:07]

Created Reland of Enable testing of WebRTC IP Permission Finch

[commit-bot: I haz the power, 2015-10-06 20:59:54]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1380323005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1380323005/1

[commit-bot: I haz the power, 2015-10-06 20:59:55]

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

[commit-bot: I haz the power, 2015-10-06 20:59:55]

No L-G-T-M from a valid reviewer yet. Only full committers are accepted.
Even if an L-G-T-M may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[rkaplow, 2015-10-06 21:46:26]

lgtm

[guoweis_left_chromium, 2015-10-06 21:46:51]

The CQ bit was checked by guoweis@chromium.org

[commit-bot: I haz the power, 2015-10-06 21:48:33]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1380323005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1380323005/1

[guoweis_left_chromium, 2015-10-06 21:49:10]

The CQ bit was unchecked by guoweis@chromium.org

[commit-bot: I haz the power, 2015-10-06 21:50:38]

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

[guoweis_left_chromium, 2015-10-06 21:53:01]

On 2015/10/06 21:48:33, commit-bot: I haz the power wrote:
> CQ is trying da patch. Follow status at
>  https://chromium-cq-status.appspot.com/patch-status/1380323005/1
> View timeline at
>  https://chromium-cq-status.appspot.com/patch-timeline/1380323005/1

I'm going to land this again. I searched but there is no trybot that I could try
the failed tests before landing it. Here it comes. I know for sure these
original 4 test cases should have been addressed by the CL that I submitted this
morning. Not sure whether there is more. I'll monitor the build though.

[guoweis_left_chromium, 2015-10-06 21:53:11]

The CQ bit was checked by guoweis@chromium.org

[commit-bot: I haz the power, 2015-10-06 21:54:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1380323005/1
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1380323005/1

[commit-bot: I haz the power, 2015-10-06 21:56:31]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-10-06 21:57:25]

Patchset 1 (id:??) landed as
https://crrev.com/336786c5beb64348189f2f6cf9a5b2de14e37965
Cr-Commit-Position: refs/heads/master@{#352695}

[guoweis_left_chromium, 2015-10-06 23:04:51]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/1385323003/ by guoweis@chromium.org.

The reason for reverting is: Hmm, this still causes the failure. When I tested
it, I could repro it but not anymore after the checkin I mentioned.

Revert it again to do more investigation..