Rename BEGIN_PROXY_MAP --> BEGIN_SIGNALLING_PROXY_MAP.

webrtc/api/rtpsenderinterface.h

Index: webrtc/api/rtpsenderinterface.h
diff --git a/webrtc/api/rtpsenderinterface.h b/webrtc/api/rtpsenderinterface.h
index 776d01ace6b4457a960dbcf1795d70e8de11c805..6cd9a7254d4997d1e4cf0206b8896d5e1bbff4e5 100644
--- a/webrtc/api/rtpsenderinterface.h
+++ b/webrtc/api/rtpsenderinterface.h
@@ -60,7 +60,7 @@ class RtpSenderInterface : public rtc::RefCountInterface {
 };
 
 // Define proxy for RtpSenderInterface.
-BEGIN_PROXY_MAP(RtpSender)
+BEGIN_SIGNALLING_PROXY_MAP(RtpSender)
 PROXY_METHOD1(bool, SetTrack, MediaStreamTrackInterface*)
 PROXY_CONSTMETHOD0(rtc::scoped_refptr<MediaStreamTrackInterface>, track)
 PROXY_METHOD1(void, SetSsrc, uint32_t)
@@ -72,7 +72,7 @@ PROXY_CONSTMETHOD0(std::string, stream_id)
 PROXY_METHOD0(void, Stop)
 PROXY_CONSTMETHOD0(RtpParameters, GetParameters);
 PROXY_METHOD1(bool, SetParameters, const RtpParameters&)
-END_PROXY()
+END_SIGNALLING_PROXY()
 
 }  // namespace webrtc