Replace RefCountImpl with rtc::RefCountedObject.

webrtc/modules/video_capture/external/video_capture_external.cc

Index: webrtc/modules/video_capture/external/video_capture_external.cc
diff --git a/webrtc/modules/video_capture/external/video_capture_external.cc b/webrtc/modules/video_capture/external/video_capture_external.cc
index 29b161263c8d8d0f7c3c5cb9fa9d3703ea320170..d636eeeef126c33a23f3159754aa10eee6fcc8b2 100644
--- a/webrtc/modules/video_capture/external/video_capture_external.cc
+++ b/webrtc/modules/video_capture/external/video_capture_external.cc
@@ -8,19 +8,17 @@
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
+#include "webrtc/base/refcount.h"
 #include "webrtc/modules/video_capture/video_capture_impl.h"
-#include "webrtc/system_wrappers/include/ref_count.h"
 
 namespace webrtc {
 
 namespace videocapturemodule {
 
-VideoCaptureModule* VideoCaptureImpl::Create(
+rtc::scoped_refptr<VideoCaptureModule> VideoCaptureImpl::Create(
     const int32_t id,
     const char* deviceUniqueIdUTF8) {
-  RefCountImpl<VideoCaptureImpl>* implementation =
-      new RefCountImpl<VideoCaptureImpl>(id);
-  return implementation;
+  return new rtc::RefCountedObject<VideoCaptureImpl>(id);
 }
 
 }  // namespace videocapturemodule