Remove ALL usage of CriticalSectionWrapper.

webrtc/modules/video_capture/linux/video_capture_linux.h

Index: webrtc/modules/video_capture/linux/video_capture_linux.h
diff --git a/webrtc/modules/video_capture/linux/video_capture_linux.h b/webrtc/modules/video_capture/linux/video_capture_linux.h
index e048e88d5939a3079f5f9c312febd6747075d541..fdfcdb563dbaccb563ac4bf9ede485421ffc132b 100644
--- a/webrtc/modules/video_capture/linux/video_capture_linux.h
+++ b/webrtc/modules/video_capture/linux/video_capture_linux.h
@@ -13,13 +13,13 @@
 
 #include <memory>
 
+#include "webrtc/base/criticalsection.h"
 #include "webrtc/base/platform_thread.h"
 #include "webrtc/common_types.h"
 #include "webrtc/modules/video_capture/video_capture_impl.h"
 
 namespace webrtc
 {
-class CriticalSectionWrapper;
 namespace videocapturemodule
 {
 class VideoCaptureModuleV4L2: public VideoCaptureImpl
@@ -43,7 +43,7 @@ private:
 
     // TODO(pbos): Stop using unique_ptr and resetting the thread.
     std::unique_ptr<rtc::PlatformThread> _captureThread;
-    CriticalSectionWrapper* _captureCritSect;
+    rtc::CriticalSection _captureCritSect;
 
     int32_t _deviceId;
     int32_t _deviceFd;