Remove implicit conversions from scoped_refptr to T* in extensions code.

chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.cc

 // 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.
 
 #include "chrome/browser/extensions/api/enterprise_platform_keys/enterprise_platform_keys_api.h"
 
 #include "base/bind.h"
 #include "base/values.h"
 #include "chrome/browser/chromeos/platform_keys/platform_keys.h"
 #include "chrome/browser/chromeos/platform_keys/platform_keys_service.h"
@@ skipping 194 matching lines @@
   scoped_ptr<api_epk::ImportCertificate::Params> params(
       api_epk::ImportCertificate::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
   std::string platform_keys_token_id;
   if (!ValidateToken(params->token_id, &platform_keys_token_id))
     return RespondNow(Error(kErrorInvalidToken));
 
   const std::string& cert_der = params->certificate;
   scoped_refptr<net::X509Certificate> cert_x509 =
       net::X509Certificate::CreateFromBytes(cert_der.data(), cert_der.size());
-  if (!cert_x509)
+  if (!cert_x509.get())
     return RespondNow(Error(kErrorInvalidX509Cert));
 
   chromeos::platform_keys::ImportCertificate(
       platform_keys_token_id,
       cert_x509,
       base::Bind(&EnterprisePlatformKeysImportCertificateFunction::
                      OnImportedCertificate,
                  this),
       browser_context());
   return RespondLater();
@@ skipping 17 matching lines @@
   scoped_ptr<api_epk::RemoveCertificate::Params> params(
       api_epk::RemoveCertificate::Params::Create(*args_));
   EXTENSION_FUNCTION_VALIDATE(params);
   std::string platform_keys_token_id;
   if (!ValidateToken(params->token_id, &platform_keys_token_id))
     return RespondNow(Error(kErrorInvalidToken));
 
   const std::string& cert_der = params->certificate;
   scoped_refptr<net::X509Certificate> cert_x509 =
       net::X509Certificate::CreateFromBytes(cert_der.data(), cert_der.size());
-  if (!cert_x509)
+  if (!cert_x509.get())
     return RespondNow(Error(kErrorInvalidX509Cert));
 
   chromeos::platform_keys::RemoveCertificate(
       platform_keys_token_id,
       cert_x509,
       base::Bind(&EnterprisePlatformKeysRemoveCertificateFunction::
                      OnRemovedCertificate,
                  this),
       browser_context());
   return RespondLater();
@@ skipping 42 matching lines @@
       Respond(Error(kErrorInternal));
       return;
     }
     token_ids.push_back(token_id);
   }
 
   Respond(ArgumentList(api_epki::GetTokens::Results::Create(token_ids)));
 }
 
 }  // namespace extensions