Remove rtc_base/scoped_ref_ptr.h.

The type rtc::scoped_refptr<T> is now part of api/. Please include it from
api/scoped_refptr.h.

More info: See: https://groups.google.com/forum/#!topic/discuss-webrtc/Mme2MSz4z4o.

Bug: webrtc:9887, webrtc:8205
No-Try: True
Change-Id: Ic6c7c81e226e59f12f7933e472f573ae097b55bf
Reviewed-on: https://webrtc-review.googlesource.com/c/119041
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#26414}
diff --git a/pc/peer_connection_rtp_unittest.cc b/pc/peer_connection_rtp_unittest.cc
index 0b95d2d..2321ada 100644
--- a/pc/peer_connection_rtp_unittest.cc
+++ b/pc/peer_connection_rtp_unittest.cc
@@ -31,6 +31,7 @@
 #include "api/rtp_receiver_interface.h"
 #include "api/rtp_sender_interface.h"
 #include "api/rtp_transceiver_interface.h"
+#include "api/scoped_refptr.h"
 #include "api/set_remote_description_observer_interface.h"
 #include "api/uma_metrics.h"
 #include "api/video_codecs/builtin_video_decoder_factory.h"
@@ -51,7 +52,6 @@
 #include "rtc_base/gunit.h"
 #include "rtc_base/ref_counted_object.h"
 #include "rtc_base/rtc_certificate_generator.h"
-#include "rtc_base/scoped_ref_ptr.h"
 #include "rtc_base/thread.h"
 #include "system_wrappers/include/metrics.h"
 #include "test/gmock.h"