Rename "NoBarrier" memory operations to "Relaxed".

src/profiler/cpu-profiler.cc

Index: src/profiler/cpu-profiler.cc
diff --git a/src/profiler/cpu-profiler.cc b/src/profiler/cpu-profiler.cc
index 85f9d5e47539e753b75476f10fb4353a16d06aa4..cff8c79955a1057e2a454fffa698702546486712 100644
--- a/src/profiler/cpu-profiler.cc
+++ b/src/profiler/cpu-profiler.cc
@@ -92,7 +92,7 @@ void ProfilerEventsProcessor::AddCurrentStack(Isolate* isolate,
 
 
 void ProfilerEventsProcessor::StopSynchronously() {
-  if (!base::NoBarrier_AtomicExchange(&running_, 0)) return;
+  if (!base::Relaxed_AtomicExchange(&running_, 0)) return;
   Join();
 }
 
@@ -143,7 +143,7 @@ ProfilerEventsProcessor::SampleProcessingResult
 
 
 void ProfilerEventsProcessor::Run() {
-  while (!!base::NoBarrier_Load(&running_)) {
+  while (!!base::Relaxed_Load(&running_)) {
     base::TimeTicks nextSampleTime =
         base::TimeTicks::HighResolutionNow() + period_;
     base::TimeTicks now;