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

chrome/browser/chromeos/login/users/avatar/user_image_manager_test_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 "chrome/browser/chromeos/login/users/avatar/user_image_manager_test_util.h"
 
 #include <stddef.h>
 #include <stdint.h>
 #include <string>
 #include <utility>
@@ skipping 35 matching lines @@
   }
   return true;
 }
 
 ImageLoader::ImageLoader(const base::FilePath& path) : path_(path) {
 }
 
 ImageLoader::~ImageLoader() {
 }
 
-scoped_ptr<gfx::ImageSkia> ImageLoader::Load() {
+std::unique_ptr<gfx::ImageSkia> ImageLoader::Load() {
   std::string image_data;
   ReadFileToString(path_, &image_data);
   ImageDecoder::StartWithOptions(this, image_data,
                                  ImageDecoder::ROBUST_JPEG_CODEC, false);
   run_loop_.Run();
   return std::move(decoded_image_);
 }
 
 void ImageLoader::OnImageDecoded(const SkBitmap& decoded_image) {
   decoded_image_.reset(
       new gfx::ImageSkia(gfx::ImageSkiaRep(decoded_image, 1.0f)));
   run_loop_.Quit();
 }
 
 void ImageLoader::OnDecodeImageFailed() {
   run_loop_.Quit();
 }
 
 }  // namespace test
 }  // namespace chromeos