Convert //components/[a-e]* from scoped_ptr to std::unique_ptr

components/client_update_protocol/ecdsa.h

 // Copyright 2016 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_CLIENT_UPDATE_PROTOCOL_ECDSA_H_
 #define COMPONENTS_CLIENT_UPDATE_PROTOCOL_ECDSA_H_
 
 #include <stdint.h>
 
+#include <memory>
 #include <string>
 #include <vector>
 
-#include "base/memory/scoped_ptr.h"
 #include "base/strings/string_piece.h"
 
 namespace client_update_protocol {
 
 // Client Update Protocol v2, or CUP-ECDSA, is used by Google Update (Omaha)
 // servers to ensure freshness and authenticity of server responses over HTTP,
 // without the overhead of HTTPS -- namely, no PKI, no guarantee of privacy, and
 // no request replay protection.
 //
 // CUP-ECDSA relies on a single signing operation using ECDSA with SHA-256,
 // instead of the original CUP which used HMAC-SHA1 with a random signing key
 // encrypted using RSA.
 //
 // Each |Ecdsa| object represents a single network ping in flight -- a call to
 // SignRequest() generates internal state that will be used by
 // ValidateResponse().
 class Ecdsa {
  public:
   ~Ecdsa();
 
   // Initializes this instance of CUP-ECDSA with a versioned public key.
   // |key_version| must be non-negative. |public_key| is expected to be a
   // DER-encoded ASN.1 SubjectPublicKeyInfo containing an ECDSA public key.
   // Returns a NULL pointer on failure.
-  static scoped_ptr<Ecdsa> Create(int key_version,
-                                  const base::StringPiece& public_key);
+  static std::unique_ptr<Ecdsa> Create(int key_version,
+                                       const base::StringPiece& public_key);
 
   // Generates freshness/authentication data for an outgoing ping.
   // |request_body| contains the body of the ping in UTF-8.  On return,
   // |query_params| contains a set of query parameters (in UTF-8) to be appended
   // to the URL.
   //
   // This method will store internal state in this instance used by calls to
   // ValidateResponse(); if you need to have multiple pings in flight,
   // initialize a separate CUP-ECDSA instance for each one.
   void SignRequest(const base::StringPiece& request_body,
@@ skipping 27 matching lines @@
   // The query string containing key version and nonce in UTF-8 form.  This is
   // modified on each call to SignRequest(), and checked by ValidateResponse().
   std::string request_query_cup2key_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(Ecdsa);
 };
 
 }  // namespace client_update_protocol
 
 #endif  // COMPONENTS_CLIENT_UPDATE_PROTOCOL_ECDSA_H_