Remove some disabled tests in WebRtcVideoEngine2.

Removes some tests that shouldn't have to be implemented or have already
been through other tests.

R=stefan@webrtc.org
BUG=1788

Review URL: https://webrtc-codereview.appspot.com/25929004

git-svn-id: http://webrtc.googlecode.com/svn@7495 4adac7df-926f-26a2-2b94-8c16560cd09d
(Auto)update libjingle 78262388-> 78262615

git-svn-id: http://webrtc.googlecode.com/svn@7496 4adac7df-926f-26a2-2b94-8c16560cd09d
HTTPS Server used instead of HTTP for loading the bots to avoid the media permission pop-up clicks every time running the test.

This code review based on the running issue:
https://webrtc-codereview.appspot.com/24939004/

R=andresp@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/27769004

git-svn-id: http://webrtc.googlecode.com/svn@7497 4adac7df-926f-26a2-2b94-8c16560cd09d
Adding Two way video and audio streaming test to RtcBot

NOTE: This code review based on this running issue:
https://review.webrtc.org/24939004/

R=andresp@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/25879004

git-svn-id: http://webrtc.googlecode.com/svn@7498 4adac7df-926f-26a2-2b94-8c16560cd09d
NOTE: This code review based on the running issue:
https://webrtc-codereview.appspot.com/24939004/

R=andresp@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/29819004

git-svn-id: http://webrtc.googlecode.com/svn@7499 4adac7df-926f-26a2-2b94-8c16560cd09d
Merging Henrik's and Peter's changes for AppRTCDemo
from https://github.com/hkjellander/AppRTCDemo.

Description of changes:
- Add connect screen with an option to enter room number or select loopback mode.
- Add 'hangup' and 'WebRTC statistics' buttons to AppRTCDemo activity.

BUG=3938
R=kjellander@webrtc.org, pbos@webrtc.org, pthatcher@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/28749004

git-svn-id: http://webrtc.googlecode.com/svn@7500 4adac7df-926f-26a2-2b94-8c16560cd09d