Convert a few components from scoped_ptr to std::unique_ptr

components/storage_monitor/storage_monitor_mac_unittest.mm

 // 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 "components/storage_monitor/storage_monitor_mac.h"
 
 #include <stdint.h>
 
 #include "base/bind_helpers.h"
 #include "base/files/file_util.h"
@@ skipping 49 matching lines @@
     content::BrowserThread::PostTask(content::BrowserThread::UI, FROM_HERE,
         base::Bind(&StorageMonitorMac::UpdateDisk,
                    base::Unretained(monitor_.get()),
                    "dummy_bsd_name", info, update_type));
     base::RunLoop().RunUntilIdle();
   }
 
  protected:
   content::TestBrowserThreadBundle thread_bundle_;
 
-  scoped_ptr<MockRemovableStorageObserver> mock_storage_observer_;
+  std::unique_ptr<MockRemovableStorageObserver> mock_storage_observer_;
 
   // Information about the disk.
   std::string unique_id_;
   base::FilePath mount_point_;
   std::string device_id_;
   StorageInfo disk_info_;
 
-  scoped_ptr<StorageMonitorMac> monitor_;
+  std::unique_ptr<StorageMonitorMac> monitor_;
 };
 
 TEST_F(StorageMonitorMacTest, AddRemove) {
   UpdateDisk(disk_info_, StorageMonitorMac::UPDATE_DEVICE_ADDED);
 
   EXPECT_EQ(1, mock_storage_observer_->attach_calls());
   EXPECT_EQ(0, mock_storage_observer_->detach_calls());
   EXPECT_EQ(device_id_, mock_storage_observer_->last_attached().device_id());
   EXPECT_EQ(mount_point_.value(),
             mock_storage_observer_->last_attached().location());
@@ skipping 73 matching lines @@
 
 // Test that mounting a DMG doesn't send a notification.
 TEST_F(StorageMonitorMacTest, DMG) {
   StorageInfo info = CreateStorageInfo(
       device_id_, "Disk Image", mount_point_, kTestSize);
   UpdateDisk(info, StorageMonitorMac::UPDATE_DEVICE_ADDED);
   EXPECT_EQ(0, mock_storage_observer_->attach_calls());
 }
 
 }  // namespace storage_monitor