Convert //base to use std::unique_ptr

base/trace_event/trace_event_etw_export_win.cc

Index: base/trace_event/trace_event_etw_export_win.cc
diff --git a/base/trace_event/trace_event_etw_export_win.cc b/base/trace_event/trace_event_etw_export_win.cc
index 838a04160f0156752c94405df716cb90ade47397..06a6b9574a8b55eca887a2786bc1820d4432b8bb 100644
--- a/base/trace_event/trace_event_etw_export_win.cc
+++ b/base/trace_event/trace_event_etw_export_win.cc
@@ -237,7 +237,7 @@ void TraceEventETWExport::AddEvent(
     const char** arg_names,
     const unsigned char* arg_types,
     const unsigned long long* arg_values,
-    const scoped_ptr<ConvertableToTraceFormat>* convertable_values) {
+    const std::unique_ptr<ConvertableToTraceFormat>* convertable_values) {
   // We bail early in case exporting is disabled or no consumer is listening.
   auto* instance = GetInstance();
   if (!instance || !instance->etw_export_enabled_ || !EventEnabledChromeEvent())