Move autowrap from ThreadManager constructor to Thread::Current.

webrtc/base/thread_darwin.mm

 /*
  *  Copyright 2017 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 21 matching lines @@
     }
   }
 
   RTC_DCHECK([NSThread isMultiThreaded]);
 }
 }
 
 namespace rtc {
 
 ThreadManager::ThreadManager() {
+  main_thread_ref_ = CurrentThreadRef();
   pthread_key_create(&key_, nullptr);
-#ifndef NO_MAIN_THREAD_WRAPPING
-  WrapCurrentThread();
-#endif
   // This is necessary to alert the cocoa runtime of the fact that
   // we are running in a multithreaded environment.
   InitCocoaMultiThreading();
 }
 
-ThreadManager::~ThreadManager() {
-  @autoreleasepool {
-    UnwrapCurrentThread();
-    pthread_key_delete(key_);
-  }
-}
-
 // static
 void* Thread::PreRun(void* pv) {
   ThreadInit* init = static_cast<ThreadInit*>(pv);
   ThreadManager::Instance()->SetCurrentThread(init->thread);
   rtc::SetCurrentThreadName(init->thread->name_.c_str());
   @autoreleasepool {
     if (init->runnable) {
       init->runnable->Run(init->thread);
     } else {
       init->thread->Run();
@@ skipping 16 matching lines @@
 
       if (cmsLoop != kForever) {
         cmsNext = static_cast<int>(TimeUntil(msEnd));
         if (cmsNext < 0)
           return true;
       }
     }
   }
 }
 }  // namespace rtc