Rename "NoBarrier" memory operations to "Relaxed".

src/libsampler/sampler.cc

 // Copyright 2016 the V8 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.
 
 #include "src/libsampler/sampler.h"
 
 #if V8_OS_POSIX && !V8_OS_CYGWIN
 
 #define USE_SIGNALS
 
@@ skipping 584 matching lines @@
 #if defined(USE_SIGNALS)
   SamplerManager::instance()->RemoveSampler(this);
 #endif
   DCHECK(IsActive());
   SetActive(false);
   SetRegistered(false);
 }
 
 
 void Sampler::IncreaseProfilingDepth() {
-  base::NoBarrier_AtomicIncrement(&profiling_, 1);
+  base::Relaxed_AtomicIncrement(&profiling_, 1);
 #if defined(USE_SIGNALS)
   SignalHandler::IncreaseSamplerCount();
 #endif
 }
 
 
 void Sampler::DecreaseProfilingDepth() {
 #if defined(USE_SIGNALS)
   SignalHandler::DecreaseSamplerCount();
 #endif
-  base::NoBarrier_AtomicIncrement(&profiling_, -1);
+  base::Relaxed_AtomicIncrement(&profiling_, -1);
 }
 
 
 #if defined(USE_SIGNALS)
 
 void Sampler::DoSample() {
   if (!SignalHandler::Installed()) return;
   if (!IsActive() && !IsRegistered()) {
     SamplerManager::instance()->AddSampler(this);
     SetRegistered(true);
@@ skipping 27 matching lines @@
 #endif
     SampleStack(state);
   }
   ResumeThread(profiled_thread);
 }
 
 #endif  // USE_SIGNALS
 
 }  // namespace sampler
 }  // namespace v8