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

chrome/browser/extensions/app_data_migrator.cc

 // 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.
 
 #include "chrome/browser/extensions/app_data_migrator.h"
 
 #include "base/files/file_util.h"
 #include "base/memory/weak_ptr.h"
 #include "chrome/browser/profiles/profile.h"
 #include "content/public/browser/browser_context.h"
@@ skipping 23 matching lines @@
       old_fs_context->default_file_task_runner()->RunsTasksOnCurrentThread());
 
   SandboxFileSystemBackendDelegate* old_sandbox_delegate =
       old_fs_context->sandbox_delegate();
   SandboxFileSystemBackendDelegate* sandbox_delegate =
       fs_context->sandbox_delegate();
 
   GURL extension_url =
       extensions::Extension::GetBaseURLFromExtensionId(extension->id());
 
-  scoped_ptr<storage::SandboxFileSystemBackendDelegate::OriginEnumerator>
+  std::unique_ptr<storage::SandboxFileSystemBackendDelegate::OriginEnumerator>
       enumerator(old_sandbox_delegate->CreateOriginEnumerator());
 
   // Find out if there is a file system that needs migration.
   GURL origin;
   do {
     origin = enumerator->Next();
   } while (origin != extension_url && !origin.is_empty());
 
   if (!origin.is_empty()) {
     // Copy the temporary file system.
@@ skipping 114 matching lines @@
   if (old_was_disabled)
     registry_->RemoveEnabled(extension->id());
   else
     registry_->AddEnabled(old);
 
   MigrateLegacyPartition(weak_factory_.GetWeakPtr(), old_partition,
                          new_partition, extension, reply);
 }
 
 }  // namespace extensions