Update from https://crrev.com/315085

base/files/file_path_watcher_win.cc

 // Copyright (c) 2011 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 "base/bind.h"
 #include "base/files/file.h"
 #include "base/files/file_path.h"
 #include "base/files/file_util.h"
@@ skipping 131 matching lines @@
   }
 }
 
 void FilePathWatcherImpl::WillDestroyCurrentMessageLoop() {
   CancelOnMessageLoopThread();
 }
 
 void FilePathWatcherImpl::OnObjectSignaled(HANDLE object) {
   // TODO(vadimt): Remove ScopedTracker below once crbug.com/418183 is fixed.
   tracked_objects::ScopedTracker tracking_profile(
-      FROM_HERE_WITH_EXPLICIT_FUNCTION("FilePathWatcherImpl_OnObjectSignaled"));
+      FROM_HERE_WITH_EXPLICIT_FUNCTION(
+          "418183 FilePathWatcherImpl::OnObjectSignaled"));
 
   DCHECK(object == handle_);
   // Make sure we stay alive through the body of this function.
   scoped_refptr<FilePathWatcherImpl> keep_alive(this);
 
   if (!UpdateWatch()) {
     callback_.Run(target_, true /* error */);
     return;
   }
 
@@ skipping 134 matching lines @@
   handle_ = INVALID_HANDLE_VALUE;
 }
 
 }  // namespace
 
 FilePathWatcher::FilePathWatcher() {
   impl_ = new FilePathWatcherImpl();
 }
 
 }  // namespace base