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

chrome/browser/chromeos/drive/fileapi/webkit_file_stream_reader_impl.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_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_READER_IMPL_H_
 #define CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_READER_IMPL_H_
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/files/file_path.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "chrome/browser/chromeos/drive/drive_file_stream_reader.h"
 #include "net/base/completion_callback.h"
 #include "storage/browser/fileapi/file_stream_reader.h"
 
 namespace base {
 class SequencedTaskRunner;
 }  // namespace base
 
@@ skipping 21 matching lines @@
   // storage::FileStreamReader override.
   int Read(net::IOBuffer* buffer,
            int buffer_length,
            const net::CompletionCallback& callback) override;
   int64_t GetLength(const net::Int64CompletionCallback& callback) override;
 
  private:
   // Called upon the initialization completion of |stream_reader_|.
   // Processes the result of the initialization with checking last
   // modified time, and calls |callback| with net::Error code as its result.
-  void OnStreamReaderInitialized(
-      const net::CompletionCallback& callback,
-      int error,
-      scoped_ptr<ResourceEntry> entry);
+  void OnStreamReaderInitialized(const net::CompletionCallback& callback,
+                                 int error,
+                                 std::unique_ptr<ResourceEntry> entry);
 
   // Part of Read(). Called after all the initialization process is completed.
   void ReadAfterStreamReaderInitialized(
       scoped_refptr<net::IOBuffer> buffer,
       int buffer_length,
       const net::CompletionCallback& callback,
       int initialization_result);
 
   // Part of GetLength(). Called after all the initialization process is
   // completed.
   void GetLengthAfterStreamReaderInitialized(
       const net::Int64CompletionCallback& callback,
       int initialization_result);
 
-  scoped_ptr<DriveFileStreamReader> stream_reader_;
+  std::unique_ptr<DriveFileStreamReader> stream_reader_;
   const base::FilePath drive_file_path_;
   const int64_t offset_;
   const base::Time expected_modification_time_;
 
   // This is available only after initialize is done.
   int64_t file_size_;
 
   // This should remain the last member so it'll be destroyed first and
   // invalidate its weak pointers before other members are destroyed.
   base::WeakPtrFactory<WebkitFileStreamReaderImpl> weak_ptr_factory_;
   DISALLOW_COPY_AND_ASSIGN(WebkitFileStreamReaderImpl);
 };
 
 }  // namespace internal
 }  // namespace drive
 
 #endif  // CHROME_BROWSER_CHROMEOS_DRIVE_FILEAPI_WEBKIT_FILE_STREAM_READER_IMPL_H_