Fix IWYU violators that don't include scoped_ptr.h in Windows build.

content/browser/tracing/etw_system_event_consumer_win.h

 // Copyright 2014 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.
 
 #ifndef CONTENT_BROWSER_TRACING_ETW_SYSTEM_EVENT_CONSUMER_WIN_H_
 #define CONTENT_BROWSER_TRACING_ETW_SYSTEM_EVENT_CONSUMER_WIN_H_
 
 #include "base/bind.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted_memory.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/threading/thread.h"
 #include "base/trace_event/tracing_agent.h"
 #include "base/values.h"
 #include "base/win/event_trace_consumer.h"
 #include "base/win/event_trace_controller.h"
 
 namespace base {
 template <typename Type>
 struct DefaultSingletonTraits;
 }
@@ skipping 51 matching lines @@
   base::Thread thread_;
   TRACEHANDLE session_handle_;
   base::win::EtwTraceProperties properties_;
 
   DISALLOW_COPY_AND_ASSIGN(EtwSystemEventConsumer);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_BROWSER_TRACING_ETW_SYSTEM_EVENT_CONSUMER_WIN_H_