Remove newapi:: namespace for typenames without overlap.

Typing newapi:: everywhere is very verbose, and doesn't add any real
value. The new API is still separated from other code by being in
separate directories, such as internal/ or new_include.

BUG=
R=stefan@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/2075004

git-svn-id: http://webrtc.googlecode.com/svn/trunk/webrtc@4601 4adac7df-926f-26a2-2b94-8c16560cd09d
32 files changed