Rename "NoBarrier" memory operations to "Relaxed".

src/libplatform/tracing/tracing-controller.cc

Index: src/libplatform/tracing/tracing-controller.cc
diff --git a/src/libplatform/tracing/tracing-controller.cc b/src/libplatform/tracing/tracing-controller.cc
index c1a4057c0555b431230dc271662e4ee11b2b8938..732e8a2993095f59d8a35b8f34a300d7548ed705 100644
--- a/src/libplatform/tracing/tracing-controller.cc
+++ b/src/libplatform/tracing/tracing-controller.cc
@@ -144,7 +144,7 @@ void TracingController::UpdateCategoryGroupEnabledFlag(size_t category_index) {
 }
 
 void TracingController::UpdateCategoryGroupEnabledFlags() {
-  size_t category_index = base::NoBarrier_Load(&g_category_index);
+  size_t category_index = base::Relaxed_Load(&g_category_index);
   for (size_t i = 0; i < category_index; i++) UpdateCategoryGroupEnabledFlag(i);
 }