Remove non-monotonic clock support

webrtc/base/platform_thread.cc

 /*
  *  Copyright (c) 2015 The WebRTC project authors. All Rights Reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 161 matching lines @@
   stop_event_.Set();
   RTC_CHECK_EQ(0, pthread_join(thread_, nullptr));
   thread_ = 0;
 #endif  // defined(WEBRTC_WIN)
 }
 
 void PlatformThread::Run() {
   if (!name_.empty())
     rtc::SetCurrentThreadName(name_.c_str());
   do {
-    // The interface contract of Start/Stop is that for a successfull call to
+    // The interface contract of Start/Stop is that for a successful call to
     // Start, there should be at least one call to the run function.  So we
     // call the function before checking |stop_|.
     if (!run_function_(obj_))
       break;
 #if defined(WEBRTC_WIN)
     // Alertable sleep to permit RaiseFlag to run and update |stop_|.
     SleepEx(0, true);
   } while (!stop_);
 #else
   } while (!stop_event_.Wait(0));
@@ skipping 48 matching lines @@
       break;
     case kRealtimePriority:
       param.sched_priority = top_prio;
       break;
   }
   return pthread_setschedparam(thread_, policy, &param) == 0;
 #endif  // defined(WEBRTC_WIN)
 }
 
 }  // namespace rtc