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

chrome/browser/chromeos/file_manager/file_watcher.cc

 // Copyright 2013 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/file_manager/file_watcher.h"
 
 #include "base/bind.h"
 #include "content/public/browser/browser_thread.h"
 #include "google_apis/drive/task_util.h"
 
 using content::BrowserThread;
 
 namespace file_manager {
 namespace {
 
 // Creates a base::FilePathWatcher and starts watching at |watch_path| with
 // |callback|. Returns NULL on failure.
 base::FilePathWatcher* CreateAndStartFilePathWatcher(
     const base::FilePath& watch_path,
     const base::FilePathWatcher::Callback& callback) {
   DCHECK_CURRENTLY_ON(BrowserThread::FILE);
   DCHECK(!callback.is_null());
 
-  scoped_ptr<base::FilePathWatcher> watcher(new base::FilePathWatcher);
+  std::unique_ptr<base::FilePathWatcher> watcher(new base::FilePathWatcher);
   if (!watcher->Watch(watch_path, false /* recursive */, callback))
     return NULL;
 
   return watcher.release();
 }
 
 }  // namespace
 
 FileWatcher::FileWatcher(const base::FilePath& virtual_path)
     : local_file_watcher_(NULL),
@@ skipping 71 matching lines @@
 
   if (file_watcher) {
     local_file_watcher_ = file_watcher;
     callback.Run(true);
   } else {
     callback.Run(false);
   }
 }
 
 }  // namespace file_manager