Convert //chrome/browser/chromeos from scoped_ptr to std::unique_ptr

chrome/browser/chromeos/login/easy_unlock/easy_unlock_key_manager.h

 // 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.
 
 #ifndef CHROME_BROWSER_CHROMEOS_LOGIN_EASY_UNLOCK_EASY_UNLOCK_KEY_MANAGER_H_
 #define CHROME_BROWSER_CHROMEOS_LOGIN_EASY_UNLOCK_EASY_UNLOCK_KEY_MANAGER_H_
 
 #include <stddef.h>
 
 #include <deque>
@@ skipping 97 matching lines @@
   using ReadOperationQueue = std::deque<EasyUnlockGetKeysOperation*>;
   WriteOperationQueue write_operation_queue_;
   ReadOperationQueue read_operation_queue_;
 
   // Scopes the raw operation pointers to the lifetime of this object.
   STLElementDeleter<WriteOperationQueue> write_queue_deleter_;
   STLElementDeleter<ReadOperationQueue> read_queue_deleter_;
 
   // Stores the current operation in progress. At most one of these variables
   // can be non-null at any time.
-  scoped_ptr<EasyUnlockRefreshKeysOperation> pending_write_operation_;
-  scoped_ptr<EasyUnlockGetKeysOperation> pending_read_operation_;
+  std::unique_ptr<EasyUnlockRefreshKeysOperation> pending_write_operation_;
+  std::unique_ptr<EasyUnlockGetKeysOperation> pending_read_operation_;
 
   base::WeakPtrFactory<EasyUnlockKeyManager> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(EasyUnlockKeyManager);
 };
 
 }  // namespace chromeos
 
 #endif  // CHROME_BROWSER_CHROMEOS_LOGIN_EASY_UNLOCK_EASY_UNLOCK_KEY_MANAGER_H_