Use one scoped_refptr.

webrtc/modules/video_capture/ios/video_capture_ios.mm

 /*
  *  Copyright (c) 2013 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
 #if !defined(__has_feature) || !__has_feature(objc_arc)
 #error "This file requires ARC support."
 #endif
 
 #include "webrtc/modules/video_capture/ios/device_info_ios_objc.h"
 #include "webrtc/modules/video_capture/ios/rtc_video_capture_ios_objc.h"
 #include "webrtc/system_wrappers/interface/ref_count.h"
-#include "webrtc/system_wrappers/interface/scoped_refptr.h"
 #include "webrtc/system_wrappers/interface/trace.h"
 
 using namespace webrtc;
 using namespace videocapturemodule;
 
 VideoCaptureModule* VideoCaptureImpl::Create(const int32_t capture_id,
                                              const char* deviceUniqueIdUTF8) {
   return VideoCaptureIos::Create(capture_id, deviceUniqueIdUTF8);
 }
 
@@ skipping 66 matching lines @@
   return 0;
 }
 
 bool VideoCaptureIos::CaptureStarted() { return is_capturing_; }
 
 int32_t VideoCaptureIos::CaptureSettings(VideoCaptureCapability& settings) {
   settings = capability_;
   settings.rawType = kVideoNV12;
   return 0;
 }