Replaced CriticalSectionWrapper with rtc::CriticalSection in rtp_rtcp module

webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc

Index: webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc
diff --git a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc
index 87c975d845a1ea4210da199da3ba6640e3f01838..d617f10dad815124be0ad782ec58b83dd1e97a2a 100644
--- a/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc
+++ b/webrtc/modules/rtp_rtcp/source/rtp_sender_video.cc
@@ -24,14 +24,12 @@
 #include "webrtc/modules/rtp_rtcp/source/rtp_format_video_generic.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_format_vp8.h"
 #include "webrtc/modules/rtp_rtcp/source/rtp_format_vp9.h"
-#include "webrtc/system_wrappers/include/critical_section_wrapper.h"
 
 namespace webrtc {
 enum { REDForFECHeaderLength = 1 };
 
 RTPSenderVideo::RTPSenderVideo(Clock* clock, RTPSenderInterface* rtpSender)
     : _rtpSender(*rtpSender),
-      crit_(CriticalSectionWrapper::CreateCriticalSection()),
       _videoType(kRtpVideoGeneric),
       _retransmissionSettings(kRetransmitBaseLayer),
       // Generic FEC
@@ -119,7 +117,7 @@ void RTPSenderVideo::SendVideoPacketAsRed(uint8_t* data_buffer,
   uint16_t next_fec_sequence_number = 0;
   {
     // Only protect while creating RED and FEC packets, not when sending.
-    CriticalSectionScoped cs(crit_.get());
+    rtc::CritScope cs(&crit_);
     red_packet.reset(producer_fec_.BuildRedPacket(
         data_buffer, payload_length, rtp_header_length, red_payload_type_));
     if (protect) {
@@ -170,7 +168,7 @@ void RTPSenderVideo::SendVideoPacketAsRed(uint8_t* data_buffer,
 void RTPSenderVideo::SetGenericFECStatus(const bool enable,
                                          const uint8_t payloadTypeRED,
                                          const uint8_t payloadTypeFEC) {
-  CriticalSectionScoped cs(crit_.get());
+  rtc::CritScope cs(&crit_);
   fec_enabled_ = enable;
   red_payload_type_ = payloadTypeRED;
   fec_payload_type_ = payloadTypeFEC;
@@ -184,14 +182,14 @@ void RTPSenderVideo::SetGenericFECStatus(const bool enable,
 void RTPSenderVideo::GenericFECStatus(bool* enable,
                                       uint8_t* payloadTypeRED,
                                       uint8_t* payloadTypeFEC) const {
-  CriticalSectionScoped cs(crit_.get());
+  rtc::CritScope cs(&crit_);
   *enable = fec_enabled_;
   *payloadTypeRED = red_payload_type_;
   *payloadTypeFEC = fec_payload_type_;
 }
 
 size_t RTPSenderVideo::FECPacketOverhead() const {
-  CriticalSectionScoped cs(crit_.get());
+  rtc::CritScope cs(&crit_);
   if (fec_enabled_) {
     // Overhead is FEC headers plus RED for FEC header plus anything in RTP
     // header beyond the 12 bytes base header (CSRC list, extensions...)
@@ -206,7 +204,7 @@ size_t RTPSenderVideo::FECPacketOverhead() const {
 
 void RTPSenderVideo::SetFecParameters(const FecProtectionParams* delta_params,
                                       const FecProtectionParams* key_params) {
-  CriticalSectionScoped cs(crit_.get());
+  rtc::CritScope cs(&crit_);
   RTC_DCHECK(delta_params);
   RTC_DCHECK(key_params);
   delta_fec_params_ = *delta_params;
@@ -234,7 +232,7 @@ int32_t RTPSenderVideo::SendVideo(const RtpVideoCodecTypes videoType,
   bool fec_enabled;
   bool first_frame = first_frame_sent_();
   {
-    CriticalSectionScoped cs(crit_.get());
+    rtc::CritScope cs(&crit_);
     FecProtectionParams* fec_params =
         frameType == kVideoFrameKey ? &key_fec_params_ : &delta_fec_params_;
     producer_fec_.SetFecParameters(fec_params, 0);
@@ -345,12 +343,12 @@ uint32_t RTPSenderVideo::FecOverheadRate() const {
 }
 
 int RTPSenderVideo::SelectiveRetransmissions() const {
-  CriticalSectionScoped cs(crit_.get());
+  rtc::CritScope cs(&crit_);
   return _retransmissionSettings;
 }
 
 void RTPSenderVideo::SetSelectiveRetransmissions(uint8_t settings) {
-  CriticalSectionScoped cs(crit_.get());
+  rtc::CritScope cs(&crit_);
   _retransmissionSettings = settings;
 }