WebRTC: Add/rename peerconnection_unittests test

This test is new for Android and is renamed on desktop (the old
name was libjingle_peerconnection_unittest).

BUG=webrtc:2365

Review URL: https://codereview.chromium.org/1608493002

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/build@298303 0039d316-1c4b-4281-b951-d872f2087c98
61 files changed