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

chrome/browser/chromeos/certificate_provider/certificate_requests.h

 // Copyright 2015 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 CHROME_BROWSER_CHROMEOS_CERTIFICATE_PROVIDER_CERTIFICATE_REQUESTS_H_
 #define CHROME_BROWSER_CHROMEOS_CERTIFICATE_PROVIDER_CERTIFICATE_REQUESTS_H_
 
 #include <map>
 #include <string>
 #include <vector>
 
 #include "base/callback_forward.h"
 #include "base/macros.h"
+#include "base/memory/scoped_ptr.h"
 #include "chrome/browser/chromeos/certificate_provider/certificate_info.h"
 #include "net/cert/x509_certificate.h"
 
 namespace chromeos {
 namespace certificate_provider {
 
 class CertificateRequests {
  public:
   CertificateRequests();
   ~CertificateRequests();
@@ skipping 34 matching lines @@
   std::map<int, scoped_ptr<CertificateRequestState>> requests_;
   int next_free_request_id_ = 0;
 
   DISALLOW_COPY_AND_ASSIGN(CertificateRequests);
 };
 
 }  // namespace certificate_provider
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_CERTIFICATE_PROVIDER_CERTIFICATE_REQUESTS_H_