Add a Mojo EDK for Chrome that uses one OS pipe per message pipe.

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 88 matching lines @@
 
   File::Info file_info;
   if (GetFileInfo(target_, &file_info)) {
     last_modified_ = file_info.last_modified;
     first_notification_ = Time::Now();
   }
 
   if (!UpdateWatch())
     return false;
 
-  watcher_.StartWatching(handle_, this);
+  watcher_.StartWatching(handle_, this, false);
 
   return true;
 }
 
 void FilePathWatcherImpl::Cancel() {
   if (callback_.is_null()) {
     // Watch was never called, or the |task_runner_| has already quit.
     set_cancelled();
     return;
   }
@@ skipping 71 matching lines @@
       first_notification_ = Time();
     }
     callback_.Run(target_, false);
   } else if (!file_exists && !last_modified_.is_null()) {
     last_modified_ = Time();
     callback_.Run(target_, false);
   }
 
   // The watch may have been cancelled by the callback.
   if (handle_ != INVALID_HANDLE_VALUE)
-    watcher_.StartWatching(handle_, this);
+    watcher_.StartWatching(handle_, this, false);
 }
 
 // static
 bool FilePathWatcherImpl::SetupWatchHandle(const FilePath& dir,
                                            bool recursive,
                                            HANDLE* handle) {
   *handle = FindFirstChangeNotification(
       dir.value().c_str(),
       recursive,
       FILE_NOTIFY_CHANGE_FILE_NAME | FILE_NOTIFY_CHANGE_SIZE |
@@ skipping 79 matching lines @@
   handle_ = INVALID_HANDLE_VALUE;
 }
 
 }  // namespace
 
 FilePathWatcher::FilePathWatcher() {
   impl_ = new FilePathWatcherImpl();
 }
 
 }  // namespace base