move base/object_watcher into base/win and add the win namespace. Fixup calle...

base/win/object_watcher.h

-// Copyright (c) 2006-2008 The Chromium Authors. All rights reserved.
+// 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.
 
-#ifndef BASE_OBJECT_WATCHER_H_
-#define BASE_OBJECT_WATCHER_H_
+#ifndef BASE_WIN_OBJECT_WATCHER_H_
+#define BASE_WIN_OBJECT_WATCHER_H_
 #pragma once
 
 #include <windows.h>
 
 #include "base/message_loop.h"
 
 namespace base {
+namespace win {
 
 // A class that provides a means to asynchronously wait for a Windows object to
 // become signaled.  It is an abstraction around RegisterWaitForSingleObject
 // that provides a notification callback, OnObjectSignaled, that runs back on
 // the origin thread (i.e., the thread that called StartWatching).
 //
 // This class acts like a smart pointer such that when it goes out-of-scope,
 // UnregisterWaitEx is automatically called, and any in-flight notification is
 // suppressed.
 //
@@ skipping 56 matching lines @@
   // MessageLoop::DestructionObserver implementation:
   virtual void WillDestroyCurrentMessageLoop();
 
   // Internal state.
   struct Watch;
   Watch* watch_;
 
   DISALLOW_COPY_AND_ASSIGN(ObjectWatcher);
 };
 
+}  // namespace win
 }  // namespace base
 
 #endif  // BASE_OBJECT_WATCHER_H_