Remove mutable from rtc::CriticalSection members.

talk/media/devices/yuvframescapturer.cc

 /*
  * libjingle
  * Copyright 2004--2014 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 67 matching lines @@
   }
 
   // Check if Run() is finished.
   bool Finished() const {
     rtc::CritScope cs(&crit_);
     return finished_;
   }
 
  private:
   YuvFramesCapturer* capturer_;
-  mutable rtc::CriticalSection crit_;
+  rtc::CriticalSection crit_;
   bool finished_;
 
   RTC_DISALLOW_COPY_AND_ASSIGN(YuvFramesThread);
 };
 
 /////////////////////////////////////////////////////////////////////
 // Implementation of class YuvFramesCapturer.
 /////////////////////////////////////////////////////////////////////
 
 const char* YuvFramesCapturer::kYuvFrameDeviceName = "YuvFramesGenerator";
@@ skipping 91 matching lines @@
 int32_t YuvFramesCapturer::GetBarcodeValue() {
   if (barcode_reference_timestamp_millis_ == -1 ||
        frame_index_ % barcode_interval_ != 0) {
      return -1;
   }
   int64_t now_millis = static_cast<int64_t>(rtc::Time()) * 1000;
   return static_cast<int32_t>(now_millis - barcode_reference_timestamp_millis_);
 }
 
 }  // namespace cricket