Clean up PlatformThread.

webrtc/system_wrappers/source/event_timer_posix.cc

 /*
  *  Copyright (c) 2011 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 136 matching lines @@
       created_at_.tv_sec = 0;
       timer_event_->Set();
       pthread_mutex_unlock(&mutex_);
       return true;
     }
   }
 
   // Start the timer thread
   timer_event_.reset(new EventTimerPosix());
   const char* thread_name = "WebRtc_event_timer_thread";
-  timer_thread_ = PlatformThread::CreateThread(Run, this, thread_name);
+  timer_thread_.reset(new rtc::PlatformThread(Run, this, thread_name));
   periodic_ = periodic;
   time_ = time;
-  bool started = timer_thread_->Start();
-  timer_thread_->SetPriority(kRealtimePriority);
+  timer_thread_->Start();
+  timer_thread_->SetPriority(rtc::kRealtimePriority);
   pthread_mutex_unlock(&mutex_);
 
-  return started;
+  return true;
 }
 
 bool EventTimerPosix::Run(void* obj) {
   return static_cast<EventTimerPosix*>(obj)->Process();
 }
 
 bool EventTimerPosix::Process() {
   pthread_mutex_lock(&mutex_);
   if (created_at_.tv_sec == 0) {
 #ifndef WEBRTC_MAC
@@ skipping 33 matching lines @@
   pthread_mutex_unlock(&mutex_);
 
   return true;
 }
 
 bool EventTimerPosix::StopTimer() {
   if (timer_event_) {
     timer_event_->Set();
   }
   if (timer_thread_) {
-    if (!timer_thread_->Stop()) {
-      return false;
-    }
+    timer_thread_->Stop();
     timer_thread_.reset();
   }
   timer_event_.reset();
 
   // Set time to zero to force new reference time for the timer.
   memset(&created_at_, 0, sizeof(created_at_));
   count_ = 0;
   return true;
 }
 
 }  // namespace webrtc