Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/pc/audiotrack.cc

Index: webrtc/pc/audiotrack.cc
diff --git a/webrtc/api/audiotrack.cc b/webrtc/pc/audiotrack.cc
similarity index 95%
rename from webrtc/api/audiotrack.cc
rename to webrtc/pc/audiotrack.cc
index c2c9557c9e3ed56a7b1b66465e56ef93288ba245..951acbf93e0ae736813631de76ba771776614509 100644
--- a/webrtc/api/audiotrack.cc
+++ b/webrtc/pc/audiotrack.cc
@@ -8,7 +8,7 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#include "webrtc/api/audiotrack.h"
+#include "webrtc/pc/audiotrack.h"
 
 #include "webrtc/base/checks.h"
 
@@ -16,8 +16,6 @@ using rtc::scoped_refptr;
 
 namespace webrtc {
 
-const char MediaStreamTrackInterface::kAudioKind[] = "audio";
-
 // static
 scoped_refptr<AudioTrack> AudioTrack::Create(
     const std::string& id,