Use one scoped_refptr.

webrtc/modules/desktop_capture/window_capturer_mac.mm

Index: webrtc/modules/desktop_capture/window_capturer_mac.mm
diff --git a/webrtc/modules/desktop_capture/window_capturer_mac.mm b/webrtc/modules/desktop_capture/window_capturer_mac.mm
index daa9fc785863573a3fd89dcab85d65ce64b81d3f..3acca67cb041ef5dd2ea59b31b3375d2954ede51 100644
--- a/webrtc/modules/desktop_capture/window_capturer_mac.mm
+++ b/webrtc/modules/desktop_capture/window_capturer_mac.mm
@@ -16,13 +16,13 @@
 #include <CoreFoundation/CoreFoundation.h>
 
 #include "webrtc/base/macutils.h"
+#include "webrtc/base/scoped_ref_ptr.h"
 #include "webrtc/modules/desktop_capture/desktop_capture_options.h"
 #include "webrtc/modules/desktop_capture/desktop_frame.h"
 #include "webrtc/modules/desktop_capture/mac/desktop_configuration.h"
 #include "webrtc/modules/desktop_capture/mac/full_screen_chrome_window_detector.h"
 #include "webrtc/modules/desktop_capture/mac/window_list_utils.h"
 #include "webrtc/system_wrappers/interface/logging.h"
-#include "webrtc/system_wrappers/interface/scoped_refptr.h"
 #include "webrtc/system_wrappers/interface/tick_util.h"
 
 namespace webrtc {
@@ -44,9 +44,8 @@ bool IsWindowValid(CGWindowID id) {
 
 class WindowCapturerMac : public WindowCapturer {
  public:
-  explicit WindowCapturerMac(
-      scoped_refptr<FullScreenChromeWindowDetector>
-          full_screen_chrome_window_detector);
+  explicit WindowCapturerMac(rtc::scoped_refptr<FullScreenChromeWindowDetector>
+                                 full_screen_chrome_window_detector);
   virtual ~WindowCapturerMac();
 
   // WindowCapturer interface.
@@ -64,15 +63,14 @@ class WindowCapturerMac : public WindowCapturer {
   // The window being captured.
   CGWindowID window_id_;
 
-  scoped_refptr<FullScreenChromeWindowDetector>
+  rtc::scoped_refptr<FullScreenChromeWindowDetector>
       full_screen_chrome_window_detector_;
 
   DISALLOW_COPY_AND_ASSIGN(WindowCapturerMac);
 };
 
-WindowCapturerMac::WindowCapturerMac(
-    scoped_refptr<FullScreenChromeWindowDetector>
-        full_screen_chrome_window_detector)
+WindowCapturerMac::WindowCapturerMac(rtc::scoped_refptr<
+    FullScreenChromeWindowDetector> full_screen_chrome_window_detector)
     : callback_(NULL),
       window_id_(0),
       full_screen_chrome_window_detector_(full_screen_chrome_window_detector) {