remove more CriticalSectionWrappers.

BUG=webrtc:7035

Review-Url: https://codereview.webrtc.org/2779623002
Cr-Commit-Position: refs/heads/master@{#17392}
diff --git a/webrtc/modules/video_coding/timing.cc b/webrtc/modules/video_coding/timing.cc
index f30976f..21f4a3d 100644
--- a/webrtc/modules/video_coding/timing.cc
+++ b/webrtc/modules/video_coding/timing.cc
@@ -21,22 +21,21 @@
 namespace webrtc {
 
 VCMTiming::VCMTiming(Clock* clock, VCMTiming* master_timing)
-    : crit_sect_(CriticalSectionWrapper::CreateCriticalSection()),
-      clock_(clock),
-      master_(false),
-      ts_extrapolator_(),
-      codec_timer_(new VCMCodecTimer()),
-      render_delay_ms_(kDefaultRenderDelayMs),
-      min_playout_delay_ms_(0),
-      max_playout_delay_ms_(10000),
-      jitter_delay_ms_(0),
-      current_delay_ms_(0),
-      last_decode_ms_(0),
-      prev_frame_timestamp_(0),
-      num_decoded_frames_(0),
-      num_delayed_decoded_frames_(0),
-      first_decoded_frame_ms_(-1),
-      sum_missed_render_deadline_ms_(0) {
+  : clock_(clock),
+    master_(false),
+    ts_extrapolator_(),
+    codec_timer_(new VCMCodecTimer()),
+    render_delay_ms_(kDefaultRenderDelayMs),
+    min_playout_delay_ms_(0),
+    max_playout_delay_ms_(10000),
+    jitter_delay_ms_(0),
+    current_delay_ms_(0),
+    last_decode_ms_(0),
+    prev_frame_timestamp_(0),
+    num_decoded_frames_(0),
+    num_delayed_decoded_frames_(0),
+    first_decoded_frame_ms_(-1),
+    sum_missed_render_deadline_ms_(0) {
   if (master_timing == NULL) {
     master_ = true;
     ts_extrapolator_ = new TimestampExtrapolator(clock_->TimeInMilliseconds());
@@ -50,11 +49,10 @@
   if (master_) {
     delete ts_extrapolator_;
   }
-  delete crit_sect_;
 }
 
 void VCMTiming::UpdateHistograms() const {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   if (num_decoded_frames_ == 0) {
     return;
   }
@@ -77,7 +75,7 @@
 }
 
 void VCMTiming::Reset() {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   ts_extrapolator_->Reset(clock_->TimeInMilliseconds());
   codec_timer_.reset(new VCMCodecTimer());
   render_delay_ms_ = kDefaultRenderDelayMs;
@@ -88,37 +86,37 @@
 }
 
 void VCMTiming::ResetDecodeTime() {
-  CriticalSectionScoped lock(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   codec_timer_.reset(new VCMCodecTimer());
 }
 
 void VCMTiming::set_render_delay(int render_delay_ms) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   render_delay_ms_ = render_delay_ms;
 }
 
 void VCMTiming::set_min_playout_delay(int min_playout_delay_ms) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   min_playout_delay_ms_ = min_playout_delay_ms;
 }
 
 int VCMTiming::min_playout_delay() {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   return min_playout_delay_ms_;
 }
 
 void VCMTiming::set_max_playout_delay(int max_playout_delay_ms) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   max_playout_delay_ms_ = max_playout_delay_ms;
 }
 
 int VCMTiming::max_playout_delay() {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   return max_playout_delay_ms_;
 }
 
 void VCMTiming::SetJitterDelay(int jitter_delay_ms) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   if (jitter_delay_ms != jitter_delay_ms_) {
     jitter_delay_ms_ = jitter_delay_ms;
     // When in initial state, set current delay to minimum delay.
@@ -129,7 +127,7 @@
 }
 
 void VCMTiming::UpdateCurrentDelay(uint32_t frame_timestamp) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   int target_delay_ms = TargetDelayInternal();
 
   if (current_delay_ms_ == 0) {
@@ -171,7 +169,7 @@
 
 void VCMTiming::UpdateCurrentDelay(int64_t render_time_ms,
                                    int64_t actual_decode_time_ms) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   uint32_t target_delay_ms = TargetDelayInternal();
   int64_t delayed_ms =
       actual_decode_time_ms -
@@ -190,7 +188,7 @@
                                    int32_t decode_time_ms,
                                    int64_t now_ms,
                                    int64_t render_time_ms) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   codec_timer_->AddTiming(decode_time_ms, now_ms);
   assert(decode_time_ms >= 0);
   last_decode_ms_ = decode_time_ms;
@@ -209,13 +207,13 @@
 }
 
 void VCMTiming::IncomingTimestamp(uint32_t time_stamp, int64_t now_ms) {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   ts_extrapolator_->Update(now_ms, time_stamp);
 }
 
 int64_t VCMTiming::RenderTimeMs(uint32_t frame_timestamp,
                                 int64_t now_ms) const {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   const int64_t render_time_ms = RenderTimeMsInternal(frame_timestamp, now_ms);
   return render_time_ms;
 }
@@ -249,7 +247,7 @@
 
 uint32_t VCMTiming::MaxWaitingTime(int64_t render_time_ms,
                                    int64_t now_ms) const {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
 
   const int64_t max_wait_time_ms =
       render_time_ms - now_ms - RequiredDecodeTimeMs() - render_delay_ms_;
@@ -262,7 +260,7 @@
 
 bool VCMTiming::EnoughTimeToDecode(
     uint32_t available_processing_time_ms) const {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   int64_t required_decode_time_ms = RequiredDecodeTimeMs();
   if (required_decode_time_ms < 0) {
     // Haven't decoded any frames yet, try decoding one to get an estimate
@@ -279,7 +277,7 @@
 }
 
 int VCMTiming::TargetVideoDelay() const {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   return TargetDelayInternal();
 }
 
@@ -295,7 +293,7 @@
                            int* jitter_buffer_ms,
                            int* min_playout_delay_ms,
                            int* render_delay_ms) const {
-  CriticalSectionScoped cs(crit_sect_);
+  rtc::CritScope cs(&crit_sect_);
   *decode_ms = last_decode_ms_;
   *max_decode_ms = RequiredDecodeTimeMs();
   *current_delay_ms = current_delay_ms_;