Create //webrtc/api:libjingle_peerconnection_api + refactorings.

webrtc/pc/test/mock_peerconnection.h

Index: webrtc/pc/test/mock_peerconnection.h
diff --git a/webrtc/api/test/mock_peerconnection.h b/webrtc/pc/test/mock_peerconnection.h
similarity index 87%
rename from webrtc/api/test/mock_peerconnection.h
rename to webrtc/pc/test/mock_peerconnection.h
index 7cc2b0dd9204bf7dd1db25aa6fea4d96de5612cc..29d69d1c8d1630504d6a0abe8ba88e26bb4b9f8b 100644
--- a/webrtc/api/test/mock_peerconnection.h
+++ b/webrtc/pc/test/mock_peerconnection.h
@@ -8,12 +8,12 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
-#ifndef WEBRTC_API_TEST_MOCK_PEERCONNECTION_H_
-#define WEBRTC_API_TEST_MOCK_PEERCONNECTION_H_
+#ifndef WEBRTC_PC_TEST_MOCK_PEERCONNECTION_H_
+#define WEBRTC_PC_TEST_MOCK_PEERCONNECTION_H_
 
 #include <vector>
 
-#include "webrtc/api/peerconnection.h"
+#include "webrtc/pc/peerconnection.h"
 #include "webrtc/test/gmock.h"
 
 namespace webrtc {
@@ -39,4 +39,4 @@ class MockPeerConnection
 
 }  // namespace webrtc
 
-#endif  // WEBRTC_API_TEST_MOCK_PEERCONNECTION_H_
+#endif  // WEBRTC_PC_TEST_MOCK_PEERCONNECTION_H_