Re-enable DirectoryWatcherTest.SubDir on Vista

base/directory_watcher_win.cc

 // Copyright (c) 2006-2008 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/directory_watcher.h"
 
 #include "base/file_path.h"
 #include "base/object_watcher.h"
 
 // Private implementation class implementing the behavior of DirectoryWatcher.
@@ skipping 24 matching lines @@
 
 DirectoryWatcher::Impl::~Impl() {
   if (handle_ != INVALID_HANDLE_VALUE) {
     watcher_.StopWatching();
     FindCloseChangeNotification(handle_);
   }
 }
 
 bool DirectoryWatcher::Impl::Watch(const FilePath& path) {
   DCHECK(path_.value().empty());  // Can only watch one path.
+  DCHECK(path.IsAbsolute());  // FindFirstChangeNotification requires it.
 
   handle_ = FindFirstChangeNotification(
       path.value().c_str(),
       FALSE,  // Don't watch subtree.
       FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_SIZE |
       FILE_NOTIFY_CHANGE_LAST_WRITE);
   if (handle_ == INVALID_HANDLE_VALUE) {
     NOTREACHED();
     return false;
   }
@@ skipping 22 matching lines @@
 
 DirectoryWatcher::~DirectoryWatcher() {
   // Declared in .cc file for access to ~DirectoryWatcher::Impl.
 }
 
 bool DirectoryWatcher::Watch(const FilePath& path,
                              Delegate* delegate) {
   impl_ = new DirectoryWatcher::Impl(delegate);
   return impl_->Watch(path);
 }