Convert //chromecast from scoped_ptr to std::unique_ptr

chromecast/crash/linux/synchronized_minidump_manager.h

 // Copyright 2015 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 CHROMECAST_CRASH_LINUX_SYNCHRONIZED_MINIDUMP_MANAGER_H_
 #define CHROMECAST_CRASH_LINUX_SYNCHRONIZED_MINIDUMP_MANAGER_H_
 
 #include <time.h>
 
 #include <string>
@@ skipping 123 matching lines @@
 
   // Creates an empty lock file and an initialized metadata file.
   int InitializeFiles();
 
   // Release the lock file with the associated *fd*.
   void ReleaseLockFile();
 
   const std::string lockfile_path_;
   const std::string metadata_path_;
   int lockfile_fd_;
-  scoped_ptr<base::Value> metadata_;
-  scoped_ptr<base::ListValue> dumps_;
+  std::unique_ptr<base::Value> metadata_;
+  std::unique_ptr<base::ListValue> dumps_;
 
   DISALLOW_COPY_AND_ASSIGN(SynchronizedMinidumpManager);
 };
 
 }  // namespace chromecast
 
 #endif  // CHROMECAST_CRASH_LINUX_SYNCHRONIZED_MINIDUMP_MANAGER_H_