.gitignore updates

Update after Chromium roll in https://review.webrtc.org/24179004/
and Android project updates in https://review.webrtc.org/25029004/

BUG=
TBR=phoglund@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/24239004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7665 4adac7df-926f-26a2-2b94-8c16560cd09d
Add unit to dropped frames.

Missing unit causes less dropped frames to be reported as a regression
and not an improvement.

R=stefan@webrtc.org
BUG=chromium:429206

Review URL: https://webrtc-codereview.appspot.com/25139004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7666 4adac7df-926f-26a2-2b94-8c16560cd09d
Refactor SetDefaultEncoderConfig to work on existing codecs.

Addresses issue where SetDefaultEncoderConfig modifies the codec list
rather than just the targeted codec. This was previously done just to
pass more unit tests rather than be done properly. This incidentally
addresses a TODO causing this to work with external codecs as well.

R=stefan@webrtc.org
BUG=1788

Review URL: https://webrtc-codereview.appspot.com/32009004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7667 4adac7df-926f-26a2-2b94-8c16560cd09d
Put send-side bwe probing under finch experiment.

BUG=crbug/425925
R=mflodman@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/26079004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7668 4adac7df-926f-26a2-2b94-8c16560cd09d
Wire up DSCP support in WebRtcVideoEngine2.

R=stefan@webrtc.org
BUG=1788

Review URL: https://webrtc-codereview.appspot.com/24249004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7669 4adac7df-926f-26a2-2b94-8c16560cd09d
Removes talk/xmllite, talk/xmpp and talk/p2p as they are no longer used by gyp/gn builds.

TBR=niklas.enbom@webrtc.org
BUG=3379

Review URL: https://webrtc-codereview.appspot.com/30959004

git-svn-id: http://webrtc.googlecode.com/svn/trunk@7670 4adac7df-926f-26a2-2b94-8c16560cd09d