Move FilePathWatcher class from browser/... to common/...

chrome/browser/file_path_watcher/file_path_watcher.cc

Index: chrome/browser/file_path_watcher/file_path_watcher.cc
diff --git a/chrome/browser/file_path_watcher/file_path_watcher.cc b/chrome/browser/file_path_watcher/file_path_watcher.cc
deleted file mode 100644
index c516172303ac66fd48ce479bb68a17aaafae5a20..0000000000000000000000000000000000000000
--- a/chrome/browser/file_path_watcher/file_path_watcher.cc
+++ /dev/null
@@ -1,19 +0,0 @@
-// Copyright (c) 2010 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.
-
-// Cross platform methods for FilePathWatcher. See the various platform
-// specific implementation files, too.
-
-#include "chrome/browser/file_path_watcher/file_path_watcher.h"
-
-FilePathWatcher::~FilePathWatcher() {
-  impl_->Cancel();
-}
-
-bool FilePathWatcher::Watch(const FilePath& path,
-                            Delegate* delegate) {
-  DCHECK(BrowserThread::CurrentlyOn(BrowserThread::FILE));
-  DCHECK(path.IsAbsolute());
-  return impl_->Watch(path, delegate);
-}