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

components/nacl/browser/nacl_browser.h

 // Copyright 2013 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 COMPONENTS_NACL_BROWSER_NACL_BROWSER_H_
 #define COMPONENTS_NACL_BROWSER_NACL_BROWSER_H_
 
 #include <stdint.h>
 
 #include <deque>
 
 #include "base/bind.h"
 #include "base/containers/mru_cache.h"
 #include "base/files/file.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "base/memory/singleton.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "build/build_config.h"
 #include "components/nacl/browser/nacl_browser_delegate.h"
 #include "components/nacl/browser/nacl_validation_cache.h"
 
 class URLPattern;
 class GURL;
 
@@ skipping 180 matching lines @@
 
   // Singletons get destroyed at shutdown.
   base::WeakPtrFactory<NaClBrowser> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(NaClBrowser);
 };
 
 } // namespace nacl
 
 #endif  // COMPONENTS_NACL_BROWSER_NACL_BROWSER_H_