Revert of Replace the remaining scoped_ptr with unique_ptr in webrtc/modules/

webrtc/modules/utility/source/process_thread_impl.cc

 /*
  *  Copyright (c) 2012 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 18 matching lines @@
     // Falling behind, we should call the callback now.
     return time_now;
   }
   return time_now + interval;
 }
 }
 
 ProcessThread::~ProcessThread() {}
 
 // static
-std::unique_ptr<ProcessThread> ProcessThread::Create(
+rtc::scoped_ptr<ProcessThread> ProcessThread::Create(
     const char* thread_name) {
-  return std::unique_ptr<ProcessThread>(new ProcessThreadImpl(thread_name));
+  return rtc::scoped_ptr<ProcessThread>(new ProcessThreadImpl(thread_name));
 }
 
 ProcessThreadImpl::ProcessThreadImpl(const char* thread_name)
     : wake_up_(EventWrapper::Create()),
       stop_(false),
       thread_name_(thread_name) {}
 
 ProcessThreadImpl::~ProcessThreadImpl() {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   RTC_DCHECK(!thread_.get());
@@ skipping 60 matching lines @@
   {
     rtc::CritScope lock(&lock_);
     for (ModuleCallback& m : modules_) {
       if (m.module == module)
         m.next_callback = kCallProcessImmediately;
     }
   }
   wake_up_->Set();
 }
 
-void ProcessThreadImpl::PostTask(std::unique_ptr<ProcessTask> task) {
+void ProcessThreadImpl::PostTask(rtc::scoped_ptr<ProcessTask> task) {
   // Allowed to be called on any thread.
   {
     rtc::CritScope lock(&lock_);
     queue_.push(task.release());
   }
   wake_up_->Set();
 }
 
 void ProcessThreadImpl::RegisterModule(Module* module) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
@@ skipping 94 matching lines @@
     }
   }
 
   int64_t time_to_wait = next_checkpoint - TickTime::MillisecondTimestamp();
   if (time_to_wait > 0)
     wake_up_->Wait(static_cast<unsigned long>(time_to_wait));
 
   return true;
 }
 }  // namespace webrtc