Update Linux to use scoped_refptr<T>::get() rather than implicit "operator T*"

net/cert/x509_certificate.h

 // 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.
 
 #ifndef NET_CERT_X509_CERTIFICATE_H_
 #define NET_CERT_X509_CERTIFICATE_H_
 
 #include <string.h>
 
 #include <string>
@@ skipping 67 matching lines @@
     kPublicKeyTypeRSA,
     kPublicKeyTypeDSA,
     kPublicKeyTypeECDSA,
     kPublicKeyTypeDH,
     kPublicKeyTypeECDH
   };
 
   // Predicate functor used in maps when X509Certificate is used as the key.
   class NET_EXPORT LessThan {
    public:
-    bool operator() (X509Certificate* lhs,  X509Certificate* rhs) const;
+    bool operator()(const scoped_refptr<X509Certificate>& lhs,
+                    const scoped_refptr<X509Certificate>& rhs) const;
   };
 
   enum Format {
     // The data contains a single DER-encoded certificate, or a PEM-encoded
     // DER certificate with the PEM encoding block name of "CERTIFICATE".
     // Any subsequent blocks will be ignored.
     FORMAT_SINGLE_CERTIFICATE = 1 << 0,
 
     // The data contains a sequence of one or more PEM-encoded, DER
     // certificates, with the PEM encoding block name of "CERTIFICATE".
@@ skipping 399 matching lines @@
   // based on the type of the certificate.
   std::string default_nickname_;
 #endif
 
   DISALLOW_COPY_AND_ASSIGN(X509Certificate);
 };
 
 }  // namespace net
 
 #endif  // NET_CERT_X509_CERTIFICATE_H_