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

components/nacl/browser/pnacl_host.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_PNACL_HOST_H_
 #define COMPONENTS_NACL_BROWSER_PNACL_HOST_H_
 
 #include <stddef.h>
 
 #include <map>
 
 #include "base/callback_forward.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/threading/thread_checker.h"
 #include "components/nacl/browser/nacl_file_host.h"
 #include "components/nacl/common/pnacl_types.h"
 #include "ipc/ipc_platform_file.h"
 
 namespace net {
 class DrainableIOBuffer;
 }
@@ skipping 152 matching lines @@
   scoped_ptr<pnacl::PnaclTranslationCache> disk_cache_;
   PendingTranslationMap pending_translations_;
   base::ThreadChecker thread_checker_;
   base::WeakPtrFactory<PnaclHost> weak_factory_;
   DISALLOW_COPY_AND_ASSIGN(PnaclHost);
 };
 
 }  // namespace pnacl
 
 #endif  // COMPONENTS_NACL_BROWSER_PNACL_HOST_H_