Convert //extensions/browser/api from scoped_ptr to std::unique_ptr

extensions/browser/api/cast_channel/cast_auth_util.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 "extensions/browser/api/cast_channel/cast_auth_util.h"
 
 #include <vector>
 
 #include "base/logging.h"
 #include "base/macros.h"
@@ skipping 120 matching lines @@
 // * Verifies that the certificate chain |response.client_auth_certificate| +
 //   |response.intermediate_certificate| is valid and chains to a trusted
 //   Cast root.
 //
 // * Verifies that |response.signature| matches the signature
 //   of |signature_input| by |response.client_auth_certificate|'s public
 //   key.
 AuthResult VerifyCredentials(const AuthResponse& response,
                              const std::string& signature_input) {
   // Verify the certificate
-  scoped_ptr<cast_crypto::CertVerificationContext> verification_context;
+  std::unique_ptr<cast_crypto::CertVerificationContext> verification_context;
 
   // Build a single vector containing the certificate chain.
   std::vector<std::string> cert_chain;
   cert_chain.push_back(response.client_auth_certificate());
   cert_chain.insert(cert_chain.end(),
                     response.intermediate_certificate().begin(),
                     response.intermediate_certificate().end());
 
   // Use the current time when checking certificate validity.
   base::Time::Exploded now;
@@ skipping 24 matching lines @@
       success.channel_policies = AuthResult::POLICY_NONE;
       break;
   }
 
   return success;
 }
 
 }  // namespace cast_channel
 }  // namespace api
 }  // namespace extensions