Convert uint16_t to int for WebRTC cipher/crypto suite

Convert uint16_t to int for WebRTC cipher/crypto suite.

This is a follow up CL on https://codereview.webrtc.org/1337673002

BUG=
R=pthatcher@webrtc.org

Committed: https://crrev.com/6caafbe5b6b777b309a6eb90a02cf54d5106fb9b
Cr-Commit-Position: refs/heads/master@{#10175}

[guoweis_webrtc, 2015-10-02 05:01:39]

guoweis@webrtc.org changed reviewers:
+ juberti@webrtc.org, pthatcher@webrtc.org

[guoweis_webrtc, 2015-10-02 05:01:40]

PTAL.

[guoweis_webrtc, 2015-10-02 05:02:04]

On 2015/10/02 05:01:40, guoweis wrote:
> PTAL.

I'll do another CL for the function name changes.

[pthatcher1, 2015-10-05 18:36:59]

lgtm

[guoweis_webrtc, 2015-10-05 18:40:28]

The CQ bit was checked by guoweis@webrtc.org

[commit-bot: I haz the power, 2015-10-05 18:40:53]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1377733004/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1377733004/40001

[guoweis_webrtc, 2015-10-05 18:50:41]

The CQ bit was unchecked by guoweis@webrtc.org

[guoweis_webrtc, 2015-10-05 19:19:22]

The CQ bit was checked by guoweis@webrtc.org

[guoweis_webrtc, 2015-10-05 19:19:23]

The patchset sent to the CQ was uploaded after l-g-t-m from pthatcher@webrtc.org
Link to the patchset: https://codereview.webrtc.org/1377733004/#ps60001 (title:
" ")

[commit-bot: I haz the power, 2015-10-05 19:19:45]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1377733004/60001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1377733004/60001

[guoweis_webrtc, 2015-10-05 19:43:55]

Committed patchset #4 (id:60001) manually as
6caafbe5b6b777b309a6eb90a02cf54d5106fb9b (presubmit successful).

[commit-bot: I haz the power, 2015-10-05 19:44:01]

Patchset 4 (id:??) landed as
https://crrev.com/6caafbe5b6b777b309a6eb90a02cf54d5106fb9b
Cr-Commit-Position: refs/heads/master@{#10175}

[juberti, 2015-10-06 05:52:39]

juberti@google.com changed reviewers:
+ juberti@google.com

[juberti, 2015-10-06 05:52:39]

https://codereview.webrtc.org/1377733004/diff/60001/webrtc/p2p/base/transport...
File webrtc/p2p/base/transportchannel.h (right):

https://codereview.webrtc.org/1377733004/diff/60001/webrtc/p2p/base/transport...
webrtc/p2p/base/transportchannel.h:110: virtual bool
GetSrtpCryptoSuite(std::string* cipher) {
Please fix this naming as well - suggest putting it back to GetSrtpCipher until
we do the string->int switcheroo.