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/sdk/BUILD.gn b/sdk/BUILD.gn
index 8d1ee7e..77d3c43 100644
--- a/sdk/BUILD.gn
+++ b/sdk/BUILD.gn
@@ -894,6 +894,7 @@
         ":videotoolbox_objc",
         "../api:create_peerconnection_factory",
         "../api:libjingle_peerconnection_api",
+        "../api:scoped_refptr",
         "../api/audio_codecs:audio_codecs_api",
         "../api/audio_codecs:builtin_audio_decoder_factory",
         "../api/audio_codecs:builtin_audio_encoder_factory",
@@ -1053,6 +1054,7 @@
             ":videoframebuffer_objc",
             ":videosource_objc",
             ":videotoolbox_objc",
+            "../api:scoped_refptr",
             "../api/video:video_frame_i420",
             "../common_video:common_video",
             "../media:rtc_media_base",
@@ -1531,6 +1533,7 @@
         ":native_video",
         ":videoframebuffer_objc",
         "../api:libjingle_peerconnection_api",
+        "../api:scoped_refptr",
         "../api/video:video_frame",
         "../api/video_codecs:video_codecs_api",
         "../common_video",