unique_ptr_migration: clean up references to scoped_ptr as of r389721

components/tracing/child_trace_message_filter.cc

 // Copyright (c) 2012 The Chromium 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 "components/tracing/child_trace_message_filter.h"
 
 #include <memory>
 
 #include "base/memory/ref_counted_memory.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/metrics/statistics_recorder.h"
 #include "base/trace_event/trace_event.h"
 #include "components/tracing/child_memory_dump_manager_delegate_impl.h"
 #include "components/tracing/tracing_messages.h"
 #include "ipc/ipc_channel.h"
 
 using base::trace_event::TraceLog;
 
 namespace tracing {
 
@@ skipping 270 matching lines @@
   }
 }
 
 void ChildTraceMessageFilter::OnClearUMACallback(
     const std::string& histogram_name) {
   histogram_last_changed_ = base::Time();
   base::StatisticsRecorder::ClearCallback(histogram_name);
 }
 
 }  // namespace tracing