Require explicit selection of traits for LazyInstance

base/files/file_path_watcher_linux.cc

 // Copyright (c) 2012 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 "base/files/file_path_watcher.h"
 
 #include <errno.h>
 #include <stddef.h>
 #include <string.h>
 #include <sys/inotify.h>
@@ skipping 45 matching lines @@
   // change. Returns kInvalidWatch on failure.
   Watch AddWatch(const FilePath& path, FilePathWatcherImpl* watcher);
 
   // Remove |watch| if it's valid.
   void RemoveWatch(Watch watch, FilePathWatcherImpl* watcher);
 
   // Callback for InotifyReaderTask.
   void OnInotifyEvent(const inotify_event* event);
 
  private:
-  friend struct DefaultLazyInstanceTraits<InotifyReader>;
+  friend struct LazyInstanceTraitsBase<InotifyReader>;
 
   typedef std::set<FilePathWatcherImpl*> WatcherSet;
 
   InotifyReader();
   // There is no destructor because |g_inotify_reader| is a
   // base::LazyInstace::Leaky object. Having a destructor causes build
   // issues with GCC 6 (http://crbug.com/636346).
 
   // We keep track of which delegates want to be notified on which watches.
   hash_map<Watch, WatcherSet> watchers_;
@@ skipping 567 matching lines @@
 }
 
 }  // namespace
 
 FilePathWatcher::FilePathWatcher() {
   sequence_checker_.DetachFromSequence();
   impl_ = MakeUnique<FilePathWatcherImpl>();
 }
 
 }  // namespace base