Swap use of CriticalSectionWrapper for rtc::CriticalSection in webrtc/video.

webrtc/video/vie_remb.h

Index: webrtc/video/vie_remb.h
diff --git a/webrtc/video/vie_remb.h b/webrtc/video/vie_remb.h
index 2a3d916d6c837f2d71212c3acf634b98a628dac0..c6bb4086c2cb8fc07660d21362e5abca1a3b23a6 100644
--- a/webrtc/video/vie_remb.h
+++ b/webrtc/video/vie_remb.h
@@ -15,6 +15,7 @@
 #include <utility>
 #include <vector>
 
+#include "webrtc/base/criticalsection.h"
 #include "webrtc/base/scoped_ptr.h"
 #include "webrtc/modules/include/module.h"
 #include "webrtc/modules/remote_bitrate_estimator/include/remote_bitrate_estimator.h"
@@ -22,7 +23,6 @@
 
 namespace webrtc {
 
-class CriticalSectionWrapper;
 class ProcessThread;
 class RtpRtcp;
 
@@ -58,7 +58,7 @@ class VieRemb : public RemoteBitrateObserver {
   typedef std::list<RtpRtcp*> RtpModules;
 
   Clock* const clock_;
-  rtc::scoped_ptr<CriticalSectionWrapper> list_crit_;
+  mutable rtc::CriticalSection list_crit_;
 
   // The last time a REMB was sent.
   int64_t last_remb_time_;